[?25l[?1c7[1[ 31.772346] audit: type=1800 audit(1581655806.848:34): pid=7083 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 G[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.647892] random: sshd: uninitialized urandom read (32 bytes read) [ 35.870606] audit: type=1400 audit(1581655810.978:35): avc: denied { map } for pid=7258 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 35.922117] random: sshd: uninitialized urandom read (32 bytes read) [ 36.653215] random: sshd: uninitialized urandom read (32 bytes read) [ 36.843382] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.24' (ECDSA) to the list of known hosts. [ 42.380558] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program [ 42.505951] audit: type=1400 audit(1581655817.608:36): avc: denied { map } for pid=7270 comm="syz-executor946" path="/root/syz-executor946336419" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 42.538010] FAULT_INJECTION: forcing a failure. [ 42.538010] name fail_futex, interval 1, probability 0, space 0, times 1 [ 42.542205] FAULT_INJECTION: forcing a failure. executing program [ 42.542205] name fail_futex, interval 1, probability 0, space 0, times 1 [ 42.555051] FAULT_INJECTION: forcing a failure. [ 42.555051] name fail_futex, interval 1, probability 0, space 0, times 1 [ 42.563995] FAULT_INJECTION: forcing a failure. [ 42.563995] name fail_futex, interval 1, probability 0, space 0, times 1 [ 42.584587] CPU: 1 PID: 7286 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 42.592551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.601909] Call Trace: [ 42.604496] dump_stack+0x142/0x197 [ 42.608217] should_fail.cold+0x10f/0x159 [ 42.612474] get_futex_key+0xb88/0x1400 [ 42.615545] FAULT_INJECTION: forcing a failure. [ 42.615545] name fail_futex, interval 1, probability 0, space 0, times 1 [ 42.616442] ? futex_lock_pi_atomic+0x220/0x220 [ 42.616452] ? up_read+0x1a/0x40 [ 42.616462] futex_wake+0xd9/0x430 [ 42.616473] ? tty_ldisc_deref+0x35/0x40 [ 42.643412] ? get_futex_key+0x1400/0x1400 [ 42.647649] ? lock_downgrade+0x740/0x740 [ 42.651790] do_futex+0x290/0x19e0 [ 42.655317] ? tty_ldisc_deref+0x35/0x40 [ 42.659363] ? tty_ioctl+0x485/0x1320 [ 42.663166] ? tty_vhangup+0x30/0x30 [ 42.666888] ? futex_exit_release+0x70/0x70 [ 42.671199] ? __might_sleep+0x93/0xb0 [ 42.675080] ? __fget+0x210/0x370 [ 42.678526] ? tty_vhangup+0x30/0x30 [ 42.682240] ? do_vfs_ioctl+0xef/0x1060 [ 42.686204] ? selinux_file_mprotect+0x5d0/0x5d0 [ 42.690952] ? lock_downgrade+0x740/0x740 [ 42.695089] ? ioctl_preallocate+0x1c0/0x1c0 [ 42.699488] SyS_futex+0x215/0x310 [ 42.703029] ? do_futex+0x19e0/0x19e0 [ 42.706829] ? do_syscall_64+0x53/0x640 [ 42.710802] ? do_futex+0x19e0/0x19e0 [ 42.714593] do_syscall_64+0x1e8/0x640 [ 42.718474] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.723320] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 42.728508] RIP: 0033:0x4469a9 [ 42.731682] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 42.739379] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 42.746642] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 42.753900] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 42.761161] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 42.768429] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 42.775809] CPU: 0 PID: 7280 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 42.783692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.793169] Call Trace: [ 42.795763] dump_stack+0x142/0x197 [ 42.799383] should_fail.cold+0x10f/0x159 [ 42.803529] get_futex_key+0xb88/0x1400 [ 42.807508] ? futex_lock_pi_atomic+0x220/0x220 [ 42.812173] ? up_read+0x1a/0x40 [ 42.816496] futex_wake+0xd9/0x430 [ 42.820026] ? tty_ldisc_deref+0x35/0x40 [ 42.824092] ? get_futex_key+0x1400/0x1400 [ 42.827250] FAULT_INJECTION: forcing a failure. [ 42.827250] name fail_futex, interval 1, probability 0, space 0, times 1 [ 42.828327] ? lock_downgrade+0x740/0x740 [ 42.828343] do_futex+0x290/0x19e0 [ 42.828350] ? tty_ldisc_deref+0x35/0x40 [ 42.828362] ? tty_ioctl+0x485/0x1320 [ 42.855219] ? tty_vhangup+0x30/0x30 [ 42.858942] ? futex_exit_release+0x70/0x70 [ 42.863265] ? __might_sleep+0x93/0xb0 [ 42.867147] ? __fget+0x210/0x370 [ 42.870597] ? tty_vhangup+0x30/0x30 [ 42.874297] ? do_vfs_ioctl+0xef/0x1060 [ 42.878258] ? selinux_file_mprotect+0x5d0/0x5d0 [ 42.883005] ? lock_downgrade+0x740/0x740 [ 42.887169] ? ioctl_preallocate+0x1c0/0x1c0 [ 42.891575] SyS_futex+0x215/0x310 [ 42.895117] ? do_futex+0x19e0/0x19e0 [ 42.898909] ? do_syscall_64+0x53/0x640 [ 42.902882] ? do_futex+0x19e0/0x19e0 [ 42.906677] do_syscall_64+0x1e8/0x640 [ 42.910576] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.915422] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 42.920604] RIP: 0033:0x4469a9 [ 42.923784] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 42.931480] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 42.939712] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 42.946974] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 42.954235] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 42.961538] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 42.968875] CPU: 1 PID: 7289 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 42.976758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.986105] Call Trace: [ 42.988693] dump_stack+0x142/0x197 [ 42.992324] should_fail.cold+0x10f/0x159 [ 42.997432] get_futex_key+0xb88/0x1400 [ 43.001448] ? futex_lock_pi_atomic+0x220/0x220 [ 43.006108] ? lock_downgrade+0x740/0x740 [ 43.010263] futex_wake+0xd9/0x430 [ 43.013797] ? get_pid_task+0x98/0x140 [ 43.017676] ? get_futex_key+0x1400/0x1400 [ 43.021912] ? __lock_acquire+0x5f7/0x4620 [ 43.026147] ? lock_downgrade+0x740/0x740 [ 43.030332] do_futex+0x290/0x19e0 [ 43.033872] ? trace_hardirqs_on+0x10/0x10 [ 43.038119] ? __fdget_pos+0x30/0xd0 [ 43.041821] ? futex_exit_release+0x70/0x70 [ 43.046141] ? __fget+0x210/0x370 [ 43.049584] ? find_held_lock+0x35/0x130 [ 43.053638] ? __fget+0x210/0x370 [ 43.057091] ? lock_downgrade+0x740/0x740 [ 43.061247] SyS_futex+0x215/0x310 [ 43.064796] ? do_futex+0x19e0/0x19e0 [ 43.068586] ? do_syscall_64+0x53/0x640 [ 43.072551] ? do_futex+0x19e0/0x19e0 [ 43.076446] do_syscall_64+0x1e8/0x640 [ 43.080325] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.085167] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.090345] RIP: 0033:0x4469a9 [ 43.093522] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 43.101222] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 43.108480] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 43.115760] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 43.123037] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 43.130322] R13: 00007f9662f44d10 R14: 0000000000000006 R15: 0000000000000000 [ 43.137612] CPU: 0 PID: 7281 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 43.145499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.154846] Call Trace: [ 43.157431] dump_stack+0x142/0x197 [ 43.161066] should_fail.cold+0x10f/0x159 [ 43.165221] get_futex_key+0xb88/0x1400 [ 43.169204] ? futex_lock_pi_atomic+0x220/0x220 [ 43.173865] ? up_read+0x1a/0x40 [ 43.177365] futex_wake+0xd9/0x430 [ 43.180900] ? tty_ldisc_deref+0x35/0x40 [ 43.184950] ? get_futex_key+0x1400/0x1400 [ 43.189174] ? lock_downgrade+0x740/0x740 [ 43.193367] do_futex+0x290/0x19e0 [ 43.197022] ? tty_ldisc_deref+0x35/0x40 [ 43.201083] ? tty_ioctl+0x485/0x1320 [ 43.204873] ? tty_vhangup+0x30/0x30 [ 43.208585] ? futex_exit_release+0x70/0x70 [ 43.212935] ? __might_sleep+0x93/0xb0 [ 43.216814] ? __fget+0x210/0x370 [ 43.220275] ? tty_vhangup+0x30/0x30 [ 43.223989] ? do_vfs_ioctl+0xef/0x1060 [ 43.227962] ? selinux_file_mprotect+0x5d0/0x5d0 [ 43.232883] ? lock_downgrade+0x740/0x740 [ 43.237035] ? ioctl_preallocate+0x1c0/0x1c0 [ 43.241442] SyS_futex+0x215/0x310 [ 43.244971] ? do_futex+0x19e0/0x19e0 [ 43.248766] ? do_syscall_64+0x53/0x640 [ 43.252758] ? do_futex+0x19e0/0x19e0 [ 43.256579] do_syscall_64+0x1e8/0x640 [ 43.260472] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.265315] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.270551] RIP: 0033:0x4469a9 [ 43.273723] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 43.281521] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 43.288785] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 43.296045] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 executing program executing program [ 43.303422] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 43.310744] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 43.318107] CPU: 1 PID: 7288 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 43.325991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.335344] Call Trace: [ 43.337939] dump_stack+0x142/0x197 [ 43.341573] should_fail.cold+0x10f/0x159 [ 43.345731] get_futex_key+0xb88/0x1400 [ 43.346214] FAULT_INJECTION: forcing a failure. [ 43.346214] name fail_futex, interval 1, probability 0, space 0, times 0 [ 43.349745] ? futex_lock_pi_atomic+0x220/0x220 [ 43.349755] ? up_read+0x1a/0x40 [ 43.349767] futex_wake+0xd9/0x430 [ 43.349776] ? tty_ldisc_deref+0x35/0x40 [ 43.349785] ? get_futex_key+0x1400/0x1400 [ 43.349797] ? lock_downgrade+0x740/0x740 [ 43.362276] FAULT_INJECTION: forcing a failure. [ 43.362276] name fail_futex, interval 1, probability 0, space 0, times 0 [ 43.365823] do_futex+0x290/0x19e0 [ 43.365832] ? tty_ldisc_deref+0x35/0x40 [ 43.365843] ? tty_ioctl+0x485/0x1320 [ 43.408042] ? tty_vhangup+0x30/0x30 [ 43.411762] ? futex_exit_release+0x70/0x70 [ 43.416087] ? __might_sleep+0x93/0xb0 [ 43.419958] ? __fget+0x210/0x370 [ 43.423409] ? tty_vhangup+0x30/0x30 [ 43.427117] ? do_vfs_ioctl+0xef/0x1060 [ 43.431088] ? selinux_file_mprotect+0x5d0/0x5d0 [ 43.435832] ? lock_downgrade+0x740/0x740 [ 43.439968] ? ioctl_preallocate+0x1c0/0x1c0 [ 43.444487] SyS_futex+0x215/0x310 [ 43.448029] ? do_futex+0x19e0/0x19e0 [ 43.451817] ? do_syscall_64+0x53/0x640 [ 43.455887] ? do_futex+0x19e0/0x19e0 [ 43.459676] do_syscall_64+0x1e8/0x640 [ 43.463566] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.468532] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.473712] RIP: 0033:0x4469a9 [ 43.476889] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 43.484589] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 43.492029] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 43.499292] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 43.506554] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 43.513925] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 43.521210] CPU: 0 PID: 7292 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 43.529096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.538551] Call Trace: [ 43.541150] dump_stack+0x142/0x197 [ 43.544773] should_fail.cold+0x10f/0x159 [ 43.548924] get_futex_key+0xb88/0x1400 [ 43.552897] ? futex_lock_pi_atomic+0x220/0x220 [ 43.557553] ? up_read+0x1a/0x40 [ 43.560916] futex_wake+0xd9/0x430 [ 43.564452] ? tty_ldisc_deref+0x35/0x40 [ 43.568509] ? get_futex_key+0x1400/0x1400 [ 43.572771] ? lock_downgrade+0x740/0x740 [ 43.576929] do_futex+0x290/0x19e0 [ 43.580464] ? tty_ldisc_deref+0x35/0x40 [ 43.584512] ? tty_ioctl+0x485/0x1320 [ 43.588416] ? tty_vhangup+0x30/0x30 [ 43.592137] ? futex_exit_release+0x70/0x70 [ 43.596550] ? __might_sleep+0x93/0xb0 [ 43.600424] ? __fget+0x210/0x370 [ 43.603875] ? tty_vhangup+0x30/0x30 executing program [ 43.607591] ? do_vfs_ioctl+0xef/0x1060 [ 43.611554] ? selinux_file_mprotect+0x5d0/0x5d0 [ 43.616308] ? lock_downgrade+0x740/0x740 [ 43.620453] ? ioctl_preallocate+0x1c0/0x1c0 [ 43.624855] SyS_futex+0x215/0x310 [ 43.628515] ? do_futex+0x19e0/0x19e0 [ 43.632312] ? do_syscall_64+0x53/0x640 [ 43.636294] ? do_futex+0x19e0/0x19e0 [ 43.640101] do_syscall_64+0x1e8/0x640 [ 43.643985] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.648819] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.654011] RIP: 0033:0x4469a9 executing program [ 43.657189] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 43.664891] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 43.672146] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 43.679412] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 43.686676] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 43.694040] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 43.701312] CPU: 1 PID: 7287 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 43.709371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.718717] Call Trace: [ 43.721357] dump_stack+0x142/0x197 [ 43.724985] should_fail.cold+0x10f/0x159 [ 43.729124] get_futex_key+0xb88/0x1400 [ 43.733100] ? futex_lock_pi_atomic+0x220/0x220 [ 43.737768] ? up_read+0x1a/0x40 [ 43.741126] futex_wake+0xd9/0x430 [ 43.744676] ? tty_ldisc_deref+0x35/0x40 [ 43.748740] ? get_futex_key+0x1400/0x1400 [ 43.752993] ? lock_downgrade+0x740/0x740 [ 43.757158] do_futex+0x290/0x19e0 [ 43.760709] ? tty_ldisc_deref+0x35/0x40 [ 43.764882] ? tty_ioctl+0x485/0x1320 [ 43.768820] ? tty_vhangup+0x30/0x30 [ 43.772550] ? futex_exit_release+0x70/0x70 [ 43.776987] ? __might_sleep+0x93/0xb0 [ 43.780878] ? __fget+0x210/0x370 [ 43.784343] ? tty_vhangup+0x30/0x30 [ 43.788236] ? do_vfs_ioctl+0xef/0x1060 [ 43.792220] ? selinux_file_mprotect+0x5d0/0x5d0 [ 43.796983] ? lock_downgrade+0x740/0x740 [ 43.798643] FAULT_INJECTION: forcing a failure. [ 43.798643] name fail_futex, interval 1, probability 0, space 0, times 0 [ 43.801134] ? ioctl_preallocate+0x1c0/0x1c0 [ 43.801148] SyS_futex+0x215/0x310 [ 43.801162] ? do_futex+0x19e0/0x19e0 [ 43.801172] ? do_syscall_64+0x53/0x640 [ 43.801180] ? do_futex+0x19e0/0x19e0 [ 43.801188] do_syscall_64+0x1e8/0x640 [ 43.801196] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.801209] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.801220] RIP: 0033:0x4469a9 [ 43.849302] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca executing program executing program [ 43.857006] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 43.864273] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 43.871540] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 43.878801] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 43.886077] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 43.893369] CPU: 0 PID: 7299 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 43.901263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.910729] Call Trace: [ 43.913321] dump_stack+0x142/0x197 [ 43.916955] should_fail.cold+0x10f/0x159 [ 43.921113] get_futex_key+0xb88/0x1400 [ 43.925109] ? futex_lock_pi_atomic+0x220/0x220 [ 43.929900] ? up_read+0x1a/0x40 [ 43.933277] futex_wake+0xd9/0x430 [ 43.934541] FAULT_INJECTION: forcing a failure. [ 43.934541] name fail_futex, interval 1, probability 0, space 0, times 0 [ 43.936823] ? tty_ldisc_deref+0x35/0x40 [ 43.936836] ? get_futex_key+0x1400/0x1400 [ 43.936848] ? lock_downgrade+0x740/0x740 [ 43.936867] do_futex+0x290/0x19e0 [ 43.949460] FAULT_INJECTION: forcing a failure. [ 43.949460] name fail_futex, interval 1, probability 0, space 0, times 0 [ 43.952374] ? tty_ldisc_deref+0x35/0x40 [ 43.952384] ? tty_ioctl+0x485/0x1320 [ 43.952393] ? tty_vhangup+0x30/0x30 [ 43.952406] ? futex_exit_release+0x70/0x70 [ 43.952415] ? __might_sleep+0x93/0xb0 [ 43.952423] ? __fget+0x210/0x370 [ 43.952435] ? tty_vhangup+0x30/0x30 [ 43.959971] FAULT_INJECTION: forcing a failure. [ 43.959971] name failslab, interval 1, probability 0, space 0, times 1 [ 43.960877] ? do_vfs_ioctl+0xef/0x1060 [ 43.960885] ? selinux_file_mprotect+0x5d0/0x5d0 [ 43.960891] ? lock_downgrade+0x740/0x740 [ 43.960897] ? ioctl_preallocate+0x1c0/0x1c0 [ 43.960905] SyS_futex+0x215/0x310 [ 43.960912] ? do_futex+0x19e0/0x19e0 [ 43.960919] ? do_syscall_64+0x53/0x640 [ 43.960924] ? do_futex+0x19e0/0x19e0 [ 43.960930] do_syscall_64+0x1e8/0x640 [ 43.960939] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.960948] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.960953] RIP: 0033:0x4469a9 [ 43.960956] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 43.960962] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 43.960965] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 43.960968] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 43.960971] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 43.960974] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 43.961941] CPU: 0 PID: 7293 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 44.115654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.125000] Call Trace: [ 44.127587] dump_stack+0x142/0x197 [ 44.131204] should_fail.cold+0x10f/0x159 [ 44.135355] get_futex_key+0xb88/0x1400 [ 44.139330] ? futex_lock_pi_atomic+0x220/0x220 [ 44.143995] ? up_read+0x1a/0x40 [ 44.147360] futex_wake+0xd9/0x430 [ 44.150922] ? tty_ldisc_deref+0x35/0x40 [ 44.154986] ? get_futex_key+0x1400/0x1400 [ 44.159207] ? lock_downgrade+0x740/0x740 [ 44.163472] do_futex+0x290/0x19e0 [ 44.167130] ? tty_ldisc_deref+0x35/0x40 [ 44.171203] ? tty_ioctl+0x485/0x1320 [ 44.174998] ? tty_vhangup+0x30/0x30 [ 44.178703] ? futex_exit_release+0x70/0x70 [ 44.183012] ? __might_sleep+0x93/0xb0 [ 44.186896] ? __fget+0x210/0x370 [ 44.190350] ? tty_vhangup+0x30/0x30 [ 44.194056] ? do_vfs_ioctl+0xef/0x1060 [ 44.198026] ? selinux_file_mprotect+0x5d0/0x5d0 [ 44.202780] ? lock_downgrade+0x740/0x740 [ 44.206920] ? ioctl_preallocate+0x1c0/0x1c0 [ 44.211335] SyS_futex+0x215/0x310 [ 44.214875] ? do_futex+0x19e0/0x19e0 [ 44.218661] ? do_syscall_64+0x53/0x640 [ 44.222625] ? do_futex+0x19e0/0x19e0 [ 44.226427] do_syscall_64+0x1e8/0x640 [ 44.230321] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.235161] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.240342] RIP: 0033:0x4469a9 [ 44.243514] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 44.251302] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 executing program executing program [ 44.258558] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 44.265822] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 44.273090] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 44.280440] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 44.287709] CPU: 1 PID: 7303 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 44.295723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.296065] FAULT_INJECTION: forcing a failure. [ 44.296065] name fail_futex, interval 1, probability 0, space 0, times 0 [ 44.305075] Call Trace: [ 44.305093] dump_stack+0x142/0x197 [ 44.305105] should_fail.cold+0x10f/0x159 [ 44.305113] should_failslab+0xdb/0x130 [ 44.305124] __kmalloc+0x71/0x7a0 [ 44.305137] ? pty_write+0x14d/0x1d0 [ 44.318656] FAULT_INJECTION: forcing a failure. [ 44.318656] name fail_futex, interval 1, probability 0, space 0, times 0 [ 44.319081] ? __tty_buffer_request_room+0x1a4/0x500 [ 44.319088] __tty_buffer_request_room+0x1a4/0x500 [ 44.319098] tty_insert_flip_string_fixed_flag+0x8a/0x1c0 [ 44.364872] pty_write+0x113/0x1d0 [ 44.368398] ? save_trace+0x290/0x290 [ 44.372195] tty_put_char+0x108/0x130 [ 44.375991] ? dev_match_devt+0x90/0x90 [ 44.380140] ? mutex_trylock+0x1c0/0x1c0 [ 44.384192] do_output_char+0x135/0x7a0 [ 44.388159] __process_echoes+0x316/0x8a0 [ 44.392332] n_tty_receive_buf_common+0x8ed/0x2570 [ 44.397265] ? n_tty_receive_buf2+0x40/0x40 [ 44.401577] n_tty_receive_buf+0x31/0x3b [ 44.405740] tty_ioctl+0xded/0x1320 [ 44.409357] ? tty_vhangup+0x30/0x30 [ 44.413061] ? __might_sleep+0x93/0xb0 [ 44.416943] ? __fget+0x210/0x370 [ 44.420393] ? tty_vhangup+0x30/0x30 [ 44.424106] do_vfs_ioctl+0x7ae/0x1060 [ 44.427984] ? selinux_file_mprotect+0x5d0/0x5d0 [ 44.432734] ? lock_downgrade+0x740/0x740 [ 44.436915] ? ioctl_preallocate+0x1c0/0x1c0 [ 44.441417] ? __fget+0x237/0x370 [ 44.444890] ? security_file_ioctl+0x7d/0xb0 [ 44.449391] ? security_file_ioctl+0x89/0xb0 [ 44.453801] SyS_ioctl+0x8f/0xc0 [ 44.457158] ? do_vfs_ioctl+0x1060/0x1060 [ 44.461383] do_syscall_64+0x1e8/0x640 [ 44.465260] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.470114] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.475292] RIP: 0033:0x4469a9 [ 44.478474] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.486181] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 44.493442] RDX: 0000000020000100 RSI: 0000000000005412 RDI: 0000000000000004 [ 44.500723] RBP: 00000000006dbc40 R08: 0000000000000001 R09: 0000000000000000 [ 44.507980] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 44.515252] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 44.522630] CPU: 0 PID: 7306 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 44.522632] [ 44.522638] ====================================================== [ 44.522641] WARNING: possible circular locking dependency detected [ 44.522643] 4.14.170-syzkaller #0 Not tainted [ 44.522645] ------------------------------------------------------ [ 44.522648] syz-executor946/7303 is trying to acquire lock: [ 44.522649] (console_owner){-...}, at: [] vprintk_emit+0x2f1/0x600 [ 44.522656] [ 44.522658] but task is already holding lock: [ 44.522660] (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xe0/0x1d0 [ 44.522667] [ 44.522669] which lock already depends on the new lock. [ 44.522670] [ 44.522671] [ 44.522674] the existing dependency chain (in reverse order) is: [ 44.522675] [ 44.522676] -> #2 (&(&port->lock)->rlock){-.-.}: [ 44.522683] lock_acquire+0x16f/0x430 [ 44.522686] _raw_spin_lock_irqsave+0x95/0xcd [ 44.522688] tty_port_tty_get+0x22/0x90 [ 44.522690] tty_port_default_wakeup+0x16/0x40 [ 44.522692] tty_port_tty_wakeup+0x57/0x70 [ 44.522694] uart_write_wakeup+0x46/0x70 [ 44.522696] serial8250_tx_chars+0x40d/0xa10 [ 44.522699] serial8250_handle_irq.part.0+0x206/0x250 [ 44.522702] serial8250_default_handle_irq+0xa1/0x120 [ 44.522704] serial8250_interrupt+0xe9/0x1a0 [ 44.522706] __handle_irq_event_percpu+0x125/0x7f0 [ 44.522708] handle_irq_event_percpu+0x65/0x130 [ 44.522710] handle_irq_event+0xa7/0x134 [ 44.522712] handle_edge_irq+0x22b/0x840 [ 44.522714] handle_irq+0x39/0x50 [ 44.522716] do_IRQ+0x99/0x1d0 [ 44.522718] ret_from_intr+0x0/0x1e [ 44.522720] native_safe_halt+0xe/0x10 [ 44.522722] arch_cpu_idle+0xa/0x10 [ 44.522724] default_idle_call+0x36/0x90 [ 44.522726] do_idle+0x262/0x3d0 [ 44.522728] cpu_startup_entry+0x1b/0x20 [ 44.522730] rest_init+0x1d9/0x1e2 [ 44.522732] start_kernel+0x65f/0x67d [ 44.522734] x86_64_start_reservations+0x29/0x2b [ 44.522736] x86_64_start_kernel+0x77/0x7b [ 44.522738] secondary_startup_64+0xa5/0xb0 [ 44.522739] [ 44.522741] -> #1 (&port_lock_key){-.-.}: [ 44.522748] lock_acquire+0x16f/0x430 [ 44.522750] _raw_spin_lock_irqsave+0x95/0xcd [ 44.522752] serial8250_console_write+0x709/0x930 [ 44.522754] univ8250_console_write+0x5f/0x70 [ 44.522756] console_unlock+0x9ba/0xed0 [ 44.522758] vprintk_emit+0x1f9/0x600 [ 44.522760] vprintk_default+0x28/0x30 [ 44.522762] vprintk_func+0x5d/0x159 [ 44.522764] printk+0x9e/0xbc [ 44.522766] register_console+0x614/0x9e0 [ 44.522768] univ8250_console_init+0x33/0x3f [ 44.522770] console_init+0x4d/0x5d [ 44.522772] start_kernel+0x43c/0x67d [ 44.522774] x86_64_start_reservations+0x29/0x2b [ 44.522776] x86_64_start_kernel+0x77/0x7b [ 44.522778] secondary_startup_64+0xa5/0xb0 [ 44.522779] [ 44.522780] -> #0 (console_owner){-...}: [ 44.522855] __lock_acquire+0x2cb3/0x4620 [ 44.522857] lock_acquire+0x16f/0x430 [ 44.522859] vprintk_emit+0x32e/0x600 [ 44.522861] vprintk_default+0x28/0x30 [ 44.522863] vprintk_func+0x5d/0x159 [ 44.522865] printk+0x9e/0xbc [ 44.522867] should_fail.cold+0xe4/0x159 [ 44.522869] should_failslab+0xdb/0x130 [ 44.522871] __kmalloc+0x71/0x7a0 [ 44.522873] __tty_buffer_request_room+0x1a4/0x500 [ 44.522876] tty_insert_flip_string_fixed_flag+0x8a/0x1c0 [ 44.522878] pty_write+0x113/0x1d0 [ 44.522880] tty_put_char+0x108/0x130 [ 44.522882] do_output_char+0x135/0x7a0 [ 44.522884] __process_echoes+0x316/0x8a0 [ 44.522887] n_tty_receive_buf_common+0x8ed/0x2570 [ 44.522889] n_tty_receive_buf+0x31/0x3b [ 44.522891] tty_ioctl+0xded/0x1320 [ 44.522893] do_vfs_ioctl+0x7ae/0x1060 [ 44.522895] SyS_ioctl+0x8f/0xc0 [ 44.522897] do_syscall_64+0x1e8/0x640 [ 44.522900] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.522901] [ 44.522903] other info that might help us debug this: [ 44.522904] [ 44.522906] Chain exists of: [ 44.522907] console_owner --> &port_lock_key --> &(&port->lock)->rlock [ 44.522917] [ 44.522919] Possible unsafe locking scenario: [ 44.522920] [ 44.522922] CPU0 CPU1 [ 44.522924] ---- ---- [ 44.522926] lock(&(&port->lock)->rlock); [ 44.522931] lock(&port_lock_key); [ 44.522936] lock(&(&port->lock)->rlock); [ 44.522940] lock(console_owner); [ 44.522944] [ 44.522946] *** DEADLOCK *** [ 44.522947] [ 44.522949] 4 locks held by syz-executor946/7303: [ 44.522950] #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 [ 44.522958] #1: (&o_tty->termios_rwsem/1){++++}, at: [] n_tty_receive_buf_common+0x8f/0x2570 [ 44.522968] #2: (&ldata->output_lock){+.+.}, at: [] n_tty_receive_buf_common+0x8ad/0x2570 [ 44.522976] #3: (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xe0/0x1d0 [ 44.522983] [ 44.522985] stack backtrace: [ 44.522989] CPU: 1 PID: 7303 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 44.522992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.522994] Call Trace: [ 44.522996] dump_stack+0x142/0x197 [ 44.522999] print_circular_bug.isra.0.cold+0x1cc/0x28f [ 44.523000] __lock_acquire+0x2cb3/0x4620 [ 44.523003] ? trace_hardirqs_on+0x10/0x10 [ 44.523004] ? save_trace+0x290/0x290 [ 44.523006] ? vprintk_emit+0x309/0x600 [ 44.523008] lock_acquire+0x16f/0x430 [ 44.523010] ? vprintk_emit+0x2f1/0x600 [ 44.523012] vprintk_emit+0x32e/0x600 [ 44.523014] ? vprintk_emit+0x2f1/0x600 [ 44.523016] vprintk_default+0x28/0x30 [ 44.523018] vprintk_func+0x5d/0x159 [ 44.523020] printk+0x9e/0xbc [ 44.523022] ? show_regs_print_info+0x63/0x63 [ 44.523024] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 44.523026] ? ___ratelimit+0x55/0x537 [ 44.523028] should_fail.cold+0xe4/0x159 [ 44.523030] should_failslab+0xdb/0x130 [ 44.523032] __kmalloc+0x71/0x7a0 [ 44.523034] ? pty_write+0x14d/0x1d0 [ 44.523036] ? __tty_buffer_request_room+0x1a4/0x500 [ 44.523039] __tty_buffer_request_room+0x1a4/0x500 [ 44.523041] tty_insert_flip_string_fixed_flag+0x8a/0x1c0 [ 44.523043] pty_write+0x113/0x1d0 [ 44.523045] ? save_trace+0x290/0x290 [ 44.523047] tty_put_char+0x108/0x130 [ 44.523049] ? dev_match_devt+0x90/0x90 [ 44.523051] ? mutex_trylock+0x1c0/0x1c0 [ 44.523053] do_output_char+0x135/0x7a0 [ 44.523055] __process_echoes+0x316/0x8a0 [ 44.523058] n_tty_receive_buf_common+0x8ed/0x2570 [ 44.523060] ? n_tty_receive_buf2+0x40/0x40 [ 44.523062] n_tty_receive_buf+0x31/0x3b [ 44.523064] tty_ioctl+0xded/0x1320 [ 44.523066] ? tty_vhangup+0x30/0x30 [ 44.523068] ? __might_sleep+0x93/0xb0 [ 44.523069] ? __fget+0x210/0x370 [ 44.523071] ? tty_vhangup+0x30/0x30 [ 44.523074] do_vfs_ioctl+0x7ae/0x1060 [ 44.523076] ? selinux_file_mprotect+0x5d0/0x5d0 [ 44.523078] ? lock_downgrade+0x740/0x740 [ 44.523080] ? ioctl_preallocate+0x1c0/0x1c0 [ 44.523082] ? __fget+0x237/0x370 [ 44.523084] ? security_file_ioctl+0x7d/0xb0 [ 44.523086] ? security_file_ioctl+0x89/0xb0 [ 44.523088] SyS_ioctl+0x8f/0xc0 [ 44.523091] ? do_vfs_ioctl+0x1060/0x1060 [ 44.523093] do_syscall_64+0x1e8/0x640 [ 44.523095] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.523097] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.523099] RIP: 0033:0x4469a9 [ 44.523101] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.523107] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 44.523110] RDX: 0000000020000100 RSI: 0000000000005412 RDI: 0000000000000004 [ 44.523113] RBP: 00000000006dbc40 R08: 0000000000000001 R09: 0000000000000000 [ 44.523116] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 44.523119] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 45.298627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.307969] Call Trace: [ 45.310545] dump_stack+0x142/0x197 [ 45.314156] should_fail.cold+0x10f/0x159 [ 45.318300] get_futex_key+0xb88/0x1400 [ 45.322268] ? futex_lock_pi_atomic+0x220/0x220 [ 45.326924] ? up_read+0x1a/0x40 [ 45.330279] futex_wake+0xd9/0x430 [ 45.333819] ? get_futex_key+0x1400/0x1400 [ 45.338046] ? lock_downgrade+0x740/0x740 [ 45.342177] do_futex+0x290/0x19e0 [ 45.345697] ? tty_ldisc_deref+0x35/0x40 [ 45.349748] ? tty_ioctl+0x485/0x1320 [ 45.353539] ? get_pid_task+0xbf/0x140 [ 45.357410] ? tty_vhangup+0x30/0x30 [ 45.361112] ? trace_hardirqs_on+0x10/0x10 [ 45.365330] ? futex_exit_release+0x70/0x70 [ 45.369639] ? __might_sleep+0x93/0xb0 [ 45.373515] ? tty_vhangup+0x30/0x30 [ 45.377221] ? do_vfs_ioctl+0xef/0x1060 [ 45.381189] ? selinux_file_mprotect+0x5d0/0x5d0 [ 45.386036] ? lock_downgrade+0x740/0x740 [ 45.390177] ? ioctl_preallocate+0x1c0/0x1c0 [ 45.394577] SyS_futex+0x215/0x310 [ 45.398106] ? do_futex+0x19e0/0x19e0 [ 45.401901] ? fput+0xd4/0x150 [ 45.405089] ? SyS_ioctl+0x67/0xc0 [ 45.408626] ? do_futex+0x19e0/0x19e0 [ 45.412443] do_syscall_64+0x1e8/0x640 [ 45.416330] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.421165] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.426344] RIP: 0033:0x4469a9 [ 45.429519] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 45.437301] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 45.444556] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 45.451813] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 45.459067] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c executing program [ 45.466327] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 45.473598] CPU: 1 PID: 7296 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 45.481475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.490944] Call Trace: [ 45.493524] dump_stack+0x142/0x197 [ 45.497148] should_fail.cold+0x10f/0x159 [ 45.501279] get_futex_key+0xb88/0x1400 [ 45.505247] ? futex_lock_pi_atomic+0x220/0x220 [ 45.509902] ? lock_downgrade+0x740/0x740 [ 45.514085] futex_wake+0xd9/0x430 [ 45.517624] ? get_pid_task+0x98/0x140 [ 45.521499] ? get_futex_key+0x1400/0x1400 [ 45.525738] ? __lock_acquire+0x5f7/0x4620 [ 45.529961] ? lock_downgrade+0x740/0x740 [ 45.534225] do_futex+0x290/0x19e0 [ 45.537764] ? trace_hardirqs_on+0x10/0x10 [ 45.541995] ? __fdget_pos+0x30/0xd0 [ 45.545723] ? futex_exit_release+0x70/0x70 [ 45.550157] ? __fget+0x210/0x370 [ 45.550942] FAULT_INJECTION: forcing a failure. [ 45.550942] name fail_futex, interval 1, probability 0, space 0, times 0 [ 45.553610] ? find_held_lock+0x35/0x130 [ 45.553619] ? __fget+0x210/0x370 [ 45.553633] ? lock_downgrade+0x740/0x740 [ 45.577119] SyS_futex+0x215/0x310 [ 45.580645] ? do_futex+0x19e0/0x19e0 [ 45.584427] ? do_syscall_64+0x53/0x640 [ 45.588391] ? do_futex+0x19e0/0x19e0 [ 45.592189] do_syscall_64+0x1e8/0x640 [ 45.596056] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.600884] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.606063] RIP: 0033:0x4469a9 [ 45.609241] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 45.616940] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 45.624219] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 45.631574] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 45.638833] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 45.646172] R13: 00007f9662f44d10 R14: 0000000000000006 R15: 0000000000000000 [ 45.653435] CPU: 0 PID: 7307 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 45.661310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.674737] Call Trace: [ 45.677323] dump_stack+0x142/0x197 [ 45.680944] should_fail.cold+0x10f/0x159 [ 45.685115] get_futex_key+0xb88/0x1400 [ 45.689084] ? futex_lock_pi_atomic+0x220/0x220 [ 45.693742] ? up_read+0x1a/0x40 [ 45.697107] futex_wake+0xd9/0x430 [ 45.700636] ? get_futex_key+0x1400/0x1400 [ 45.704862] ? lock_downgrade+0x740/0x740 [ 45.708996] do_futex+0x290/0x19e0 [ 45.712515] ? tty_ldisc_deref+0x35/0x40 [ 45.716571] ? tty_ioctl+0x485/0x1320 [ 45.720367] ? get_pid_task+0xbf/0x140 [ 45.724239] ? tty_vhangup+0x30/0x30 [ 45.727946] ? trace_hardirqs_on+0x10/0x10 [ 45.732184] ? futex_exit_release+0x70/0x70 [ 45.736496] ? __might_sleep+0x93/0xb0 [ 45.740378] ? tty_vhangup+0x30/0x30 [ 45.744085] ? do_vfs_ioctl+0xef/0x1060 [ 45.748170] ? selinux_file_mprotect+0x5d0/0x5d0 [ 45.752918] ? lock_downgrade+0x740/0x740 [ 45.757088] ? ioctl_preallocate+0x1c0/0x1c0 [ 45.761495] SyS_futex+0x215/0x310 [ 45.765035] ? do_futex+0x19e0/0x19e0 executing program [ 45.768827] ? fput+0xd4/0x150 [ 45.772009] ? SyS_ioctl+0x67/0xc0 [ 45.775548] ? do_futex+0x19e0/0x19e0 [ 45.779355] do_syscall_64+0x1e8/0x640 [ 45.783238] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.788105] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.793290] RIP: 0033:0x4469a9 [ 45.796474] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 45.799052] FAULT_INJECTION: forcing a failure. [ 45.799052] name fail_futex, interval 1, probability 0, space 0, times 0 [ 45.804184] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 45.804188] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 45.804191] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 45.804194] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 45.804198] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 45.805081] CPU: 0 PID: 7310 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 45.860363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.869846] Call Trace: [ 45.872426] dump_stack+0x142/0x197 [ 45.876056] should_fail.cold+0x10f/0x159 [ 45.880194] get_futex_key+0xb88/0x1400 [ 45.884161] ? futex_lock_pi_atomic+0x220/0x220 [ 45.888810] ? up_read+0x1a/0x40 [ 45.892163] futex_wake+0xd9/0x430 [ 45.895688] ? get_futex_key+0x1400/0x1400 [ 45.899914] ? lock_downgrade+0x740/0x740 [ 45.904055] do_futex+0x290/0x19e0 [ 45.907579] ? tty_ldisc_deref+0x35/0x40 [ 45.911629] ? tty_ioctl+0x485/0x1320 [ 45.915410] ? get_pid_task+0xbf/0x140 executing program [ 45.919298] ? tty_vhangup+0x30/0x30 [ 45.923007] ? trace_hardirqs_on+0x10/0x10 [ 45.927233] ? futex_exit_release+0x70/0x70 [ 45.931539] ? __might_sleep+0x93/0xb0 [ 45.935419] ? tty_vhangup+0x30/0x30 [ 45.939138] ? do_vfs_ioctl+0xef/0x1060 [ 45.943103] ? selinux_file_mprotect+0x5d0/0x5d0 [ 45.947844] ? lock_downgrade+0x740/0x740 [ 45.950724] FAULT_INJECTION: forcing a failure. [ 45.950724] name fail_futex, interval 1, probability 0, space 0, times 0 [ 45.951988] ? ioctl_preallocate+0x1c0/0x1c0 [ 45.951998] SyS_futex+0x215/0x310 [ 45.952009] ? do_futex+0x19e0/0x19e0 [ 45.975197] ? fput+0xd4/0x150 [ 45.978373] ? SyS_ioctl+0x67/0xc0 [ 45.981902] ? do_futex+0x19e0/0x19e0 [ 45.985702] do_syscall_64+0x1e8/0x640 [ 45.989579] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.994408] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.999595] RIP: 0033:0x4469a9 [ 46.002777] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 46.010567] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 executing program executing program [ 46.017826] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 46.025087] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 46.032341] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 46.039596] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 46.046868] CPU: 1 PID: 7312 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 46.054753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.064100] Call Trace: [ 46.066691] dump_stack+0x142/0x197 [ 46.070327] should_fail.cold+0x10f/0x159 [ 46.070378] FAULT_INJECTION: forcing a failure. [ 46.070378] name fail_futex, interval 1, probability 0, space 0, times 0 [ 46.074470] get_futex_key+0xb88/0x1400 [ 46.074479] ? futex_lock_pi_atomic+0x220/0x220 [ 46.074491] ? up_read+0x1a/0x40 [ 46.087612] FAULT_INJECTION: forcing a failure. [ 46.087612] name fail_futex, interval 1, probability 0, space 0, times 0 [ 46.089814] futex_wake+0xd9/0x430 [ 46.089824] ? get_futex_key+0x1400/0x1400 [ 46.116911] ? lock_downgrade+0x740/0x740 [ 46.121058] do_futex+0x290/0x19e0 [ 46.124599] ? tty_ldisc_deref+0x35/0x40 [ 46.128644] ? tty_ioctl+0x485/0x1320 [ 46.132434] ? get_pid_task+0xbf/0x140 [ 46.136313] ? tty_vhangup+0x30/0x30 [ 46.140011] ? trace_hardirqs_on+0x10/0x10 [ 46.144244] ? futex_exit_release+0x70/0x70 [ 46.148656] ? __might_sleep+0x93/0xb0 [ 46.152529] ? tty_vhangup+0x30/0x30 [ 46.156227] ? do_vfs_ioctl+0xef/0x1060 [ 46.160196] ? selinux_file_mprotect+0x5d0/0x5d0 [ 46.164943] ? lock_downgrade+0x740/0x740 [ 46.169084] ? ioctl_preallocate+0x1c0/0x1c0 [ 46.173480] SyS_futex+0x215/0x310 [ 46.177012] ? do_futex+0x19e0/0x19e0 [ 46.180798] ? fput+0xd4/0x150 [ 46.183981] ? SyS_ioctl+0x67/0xc0 [ 46.187502] ? do_futex+0x19e0/0x19e0 [ 46.191287] do_syscall_64+0x1e8/0x640 [ 46.195169] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.200015] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.205196] RIP: 0033:0x4469a9 [ 46.208369] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 46.216187] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 46.223445] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 46.230700] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 46.237958] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 46.245216] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 46.252493] CPU: 0 PID: 7318 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 46.260371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.269712] Call Trace: [ 46.272290] dump_stack+0x142/0x197 [ 46.275913] should_fail.cold+0x10f/0x159 [ 46.280066] get_futex_key+0xb88/0x1400 [ 46.284043] ? futex_lock_pi_atomic+0x220/0x220 [ 46.288709] ? up_read+0x1a/0x40 [ 46.292077] futex_wake+0xd9/0x430 [ 46.295604] ? get_futex_key+0x1400/0x1400 [ 46.299823] ? lock_downgrade+0x740/0x740 [ 46.303969] do_futex+0x290/0x19e0 [ 46.307494] ? tty_ldisc_deref+0x35/0x40 [ 46.311548] ? tty_ioctl+0x485/0x1320 [ 46.315342] ? get_pid_task+0xbf/0x140 [ 46.319221] ? tty_vhangup+0x30/0x30 [ 46.322943] ? trace_hardirqs_on+0x10/0x10 [ 46.327266] ? futex_exit_release+0x70/0x70 [ 46.331684] ? __might_sleep+0x93/0xb0 [ 46.335571] ? tty_vhangup+0x30/0x30 [ 46.339273] ? do_vfs_ioctl+0xef/0x1060 [ 46.343238] ? selinux_file_mprotect+0x5d0/0x5d0 [ 46.347979] ? lock_downgrade+0x740/0x740 [ 46.352110] ? ioctl_preallocate+0x1c0/0x1c0 [ 46.356514] SyS_futex+0x215/0x310 [ 46.360045] ? do_futex+0x19e0/0x19e0 [ 46.363838] ? fput+0xd4/0x150 [ 46.367034] ? SyS_ioctl+0x67/0xc0 [ 46.370573] ? do_futex+0x19e0/0x19e0 [ 46.374365] do_syscall_64+0x1e8/0x640 [ 46.378243] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.383074] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.388367] RIP: 0033:0x4469a9 [ 46.391544] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 46.399235] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 46.406491] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 46.413749] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 46.421002] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 46.429299] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 46.436568] CPU: 1 PID: 7314 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 46.444444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.453786] Call Trace: [ 46.456378] dump_stack+0x142/0x197 [ 46.459990] should_fail.cold+0x10f/0x159 [ 46.464134] get_futex_key+0xb88/0x1400 [ 46.468103] ? futex_lock_pi_atomic+0x220/0x220 [ 46.472769] ? up_read+0x1a/0x40 [ 46.476121] futex_wake+0xd9/0x430 [ 46.479648] ? get_futex_key+0x1400/0x1400 [ 46.483897] ? lock_downgrade+0x740/0x740 [ 46.488091] do_futex+0x290/0x19e0 [ 46.491623] ? tty_ldisc_deref+0x35/0x40 [ 46.495777] ? tty_ioctl+0x485/0x1320 [ 46.499567] ? get_pid_task+0xbf/0x140 [ 46.503485] ? tty_vhangup+0x30/0x30 [ 46.507190] ? trace_hardirqs_on+0x10/0x10 [ 46.511425] ? futex_exit_release+0x70/0x70 [ 46.515727] ? __might_sleep+0x93/0xb0 [ 46.519604] ? tty_vhangup+0x30/0x30 [ 46.523303] ? do_vfs_ioctl+0xef/0x1060 [ 46.527267] ? selinux_file_mprotect+0x5d0/0x5d0 [ 46.532013] ? lock_downgrade+0x740/0x740 [ 46.536151] ? ioctl_preallocate+0x1c0/0x1c0 [ 46.540551] SyS_futex+0x215/0x310 [ 46.544075] ? do_futex+0x19e0/0x19e0 [ 46.547866] ? fput+0xd4/0x150 [ 46.551046] ? SyS_ioctl+0x67/0xc0 [ 46.554580] ? do_futex+0x19e0/0x19e0 [ 46.558366] do_syscall_64+0x1e8/0x640 [ 46.562244] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.567076] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.572247] RIP: 0033:0x4469a9 [ 46.575415] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 46.583110] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 46.590366] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 46.597622] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 46.607737] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 46.614993] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 46.622261] CPU: 0 PID: 7317 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 46.630148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.639489] Call Trace: [ 46.642067] dump_stack+0x142/0x197 [ 46.645678] should_fail.cold+0x10f/0x159 [ 46.649817] get_futex_key+0xb88/0x1400 [ 46.653784] ? futex_lock_pi_atomic+0x220/0x220 [ 46.658435] ? up_read+0x1a/0x40 [ 46.661792] futex_wake+0xd9/0x430 [ 46.665321] ? get_futex_key+0x1400/0x1400 [ 46.669545] ? lock_downgrade+0x740/0x740 [ 46.673680] do_futex+0x290/0x19e0 [ 46.677212] ? tty_ldisc_deref+0x35/0x40 [ 46.681267] ? tty_ioctl+0x485/0x1320 [ 46.685060] ? get_pid_task+0xbf/0x140 [ 46.688930] ? tty_vhangup+0x30/0x30 [ 46.692624] ? trace_hardirqs_on+0x10/0x10 [ 46.696860] ? futex_exit_release+0x70/0x70 [ 46.701164] ? __might_sleep+0x93/0xb0 [ 46.705047] ? tty_vhangup+0x30/0x30 [ 46.708747] ? do_vfs_ioctl+0xef/0x1060 [ 46.712709] ? selinux_file_mprotect+0x5d0/0x5d0 [ 46.717454] ? lock_downgrade+0x740/0x740 [ 46.721768] ? ioctl_preallocate+0x1c0/0x1c0 [ 46.726167] SyS_futex+0x215/0x310 [ 46.729693] ? do_futex+0x19e0/0x19e0 [ 46.733482] ? fput+0xd4/0x150 [ 46.736659] ? SyS_ioctl+0x67/0xc0 [ 46.740186] ? do_futex+0x19e0/0x19e0 [ 46.743984] do_syscall_64+0x1e8/0x640 [ 46.747886] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.752721] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.757920] RIP: 0033:0x4469a9 [ 46.761097] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 46.768791] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 executing program executing program executing program [ 46.776047] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 46.783301] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 46.790559] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 46.797817] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 46.805918] CPU: 1 PID: 7302 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 46.812578] FAULT_INJECTION: forcing a failure. [ 46.812578] name fail_futex, interval 1, probability 0, space 0, times 0 [ 46.813804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.813807] Call Trace: [ 46.813821] dump_stack+0x142/0x197 [ 46.813841] should_fail.cold+0x10f/0x159 [ 46.844859] get_futex_key+0xb88/0x1400 [ 46.848831] ? futex_lock_pi_atomic+0x220/0x220 [ 46.853490] ? up_read+0x1a/0x40 [ 46.856862] futex_wake+0xd9/0x430 [ 46.860411] ? tty_ldisc_deref+0x35/0x40 [ 46.862836] FAULT_INJECTION: forcing a failure. [ 46.862836] name fail_futex, interval 1, probability 0, space 0, times 0 [ 46.864460] ? get_futex_key+0x1400/0x1400 [ 46.864469] ? lock_downgrade+0x740/0x740 [ 46.864481] do_futex+0x290/0x19e0 [ 46.887725] ? tty_ldisc_deref+0x35/0x40 [ 46.891773] ? tty_ioctl+0x485/0x1320 [ 46.895556] ? tty_vhangup+0x30/0x30 [ 46.899265] ? futex_exit_release+0x70/0x70 [ 46.903571] ? __might_sleep+0x93/0xb0 [ 46.907445] ? __fget+0x210/0x370 [ 46.910893] ? tty_vhangup+0x30/0x30 [ 46.914595] ? do_vfs_ioctl+0xef/0x1060 [ 46.918564] ? selinux_file_mprotect+0x5d0/0x5d0 [ 46.923303] ? lock_downgrade+0x740/0x740 [ 46.927543] ? ioctl_preallocate+0x1c0/0x1c0 [ 46.931937] SyS_futex+0x215/0x310 [ 46.935479] ? do_futex+0x19e0/0x19e0 [ 46.939271] ? do_syscall_64+0x53/0x640 [ 46.943240] ? do_futex+0x19e0/0x19e0 [ 46.947033] do_syscall_64+0x1e8/0x640 [ 46.950906] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.955750] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.960932] RIP: 0033:0x4469a9 [ 46.964104] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca executing program executing program [ 46.971797] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 46.979063] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 46.986321] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 46.993586] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 47.000847] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 47.008117] CPU: 0 PID: 7326 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 47.016002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.025378] Call Trace: [ 47.027978] dump_stack+0x142/0x197 [ 47.031443] FAULT_INJECTION: forcing a failure. [ 47.031443] name fail_futex, interval 1, probability 0, space 0, times 0 [ 47.031608] should_fail.cold+0x10f/0x159 [ 47.043846] FAULT_INJECTION: forcing a failure. [ 47.043846] name fail_futex, interval 1, probability 0, space 0, times 0 [ 47.047115] get_futex_key+0xb88/0x1400 [ 47.047127] ? futex_lock_pi_atomic+0x220/0x220 [ 47.059399] FAULT_INJECTION: forcing a failure. [ 47.059399] name fail_futex, interval 1, probability 0, space 0, times 0 [ 47.062447] ? up_read+0x1a/0x40 [ 47.062497] futex_wake+0xd9/0x430 [ 47.062511] ? get_futex_key+0x1400/0x1400 [ 47.062517] ? lock_downgrade+0x740/0x740 [ 47.062523] do_futex+0x290/0x19e0 [ 47.062527] ? tty_ldisc_deref+0x35/0x40 [ 47.062533] ? tty_ioctl+0x485/0x1320 [ 47.062540] ? get_pid_task+0xbf/0x140 [ 47.062547] ? tty_vhangup+0x30/0x30 [ 47.062552] ? trace_hardirqs_on+0x10/0x10 [ 47.062560] ? futex_exit_release+0x70/0x70 [ 47.062566] ? __might_sleep+0x93/0xb0 [ 47.062574] ? tty_vhangup+0x30/0x30 [ 47.062582] ? do_vfs_ioctl+0xef/0x1060 [ 47.062590] ? selinux_file_mprotect+0x5d0/0x5d0 [ 47.062594] ? lock_downgrade+0x740/0x740 [ 47.062604] ? ioctl_preallocate+0x1c0/0x1c0 [ 47.146096] SyS_futex+0x215/0x310 [ 47.149628] ? do_futex+0x19e0/0x19e0 [ 47.153423] ? fput+0xd4/0x150 [ 47.156603] ? SyS_ioctl+0x67/0xc0 [ 47.160140] ? do_futex+0x19e0/0x19e0 [ 47.163938] do_syscall_64+0x1e8/0x640 [ 47.167814] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.172644] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.177813] RIP: 0033:0x4469a9 [ 47.181002] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 47.188702] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 47.196832] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 47.204099] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 47.211377] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 47.218632] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 47.225901] CPU: 1 PID: 7321 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 47.233901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.243242] Call Trace: [ 47.245824] dump_stack+0x142/0x197 [ 47.249447] should_fail.cold+0x10f/0x159 [ 47.253605] get_futex_key+0xb88/0x1400 [ 47.257596] ? futex_lock_pi_atomic+0x220/0x220 [ 47.262267] ? lock_downgrade+0x740/0x740 [ 47.266415] futex_wake+0xd9/0x430 [ 47.269959] ? _kstrtoul+0x120/0x120 [ 47.273669] ? _copy_from_user+0x99/0x110 [ 47.273802] FAULT_INJECTION: forcing a failure. [ 47.273802] name fail_futex, interval 1, probability 0, space 0, times 0 [ 47.277812] ? get_futex_key+0x1400/0x1400 [ 47.277824] ? lock_downgrade+0x740/0x740 [ 47.277836] do_futex+0x290/0x19e0 [ 47.301068] ? get_pid_task+0xbf/0x140 [ 47.304961] ? proc_fail_nth_write+0x7d/0x180 [ 47.309616] ? trace_hardirqs_on+0x10/0x10 [ 47.313847] ? futex_exit_release+0x70/0x70 [ 47.318169] ? lock_downgrade+0x740/0x740 [ 47.322312] ? lock_downgrade+0x740/0x740 [ 47.326445] SyS_futex+0x215/0x310 [ 47.330082] ? do_futex+0x19e0/0x19e0 [ 47.333873] ? __fdget+0x1b/0x20 [ 47.337223] ? SyS_ioctl+0x67/0xc0 [ 47.340752] ? do_futex+0x19e0/0x19e0 [ 47.344539] do_syscall_64+0x1e8/0x640 [ 47.348422] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.353264] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.358442] RIP: 0033:0x4469a9 [ 47.361641] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 47.369341] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 executing program [ 47.376648] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 47.383910] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 47.391168] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 47.398429] R13: 00007f9662f44d10 R14: 0000000000000006 R15: 0000000000000000 [ 47.405700] CPU: 0 PID: 7332 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 47.413579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.422921] Call Trace: [ 47.425497] dump_stack+0x142/0x197 [ 47.429228] should_fail.cold+0x10f/0x159 [ 47.433368] get_futex_key+0xb88/0x1400 [ 47.437329] ? futex_lock_pi_atomic+0x220/0x220 [ 47.442009] ? up_read+0x1a/0x40 [ 47.445361] futex_wake+0xd9/0x430 [ 47.448895] ? get_futex_key+0x1400/0x1400 [ 47.453122] ? lock_downgrade+0x740/0x740 [ 47.457275] do_futex+0x290/0x19e0 [ 47.460813] ? tty_ldisc_deref+0x35/0x40 [ 47.464876] ? tty_ioctl+0x485/0x1320 [ 47.468674] ? get_pid_task+0xbf/0x140 [ 47.472602] ? tty_vhangup+0x30/0x30 [ 47.476430] ? trace_hardirqs_on+0x10/0x10 [ 47.480658] ? futex_exit_release+0x70/0x70 [ 47.484966] ? __might_sleep+0x93/0xb0 [ 47.488848] ? tty_vhangup+0x30/0x30 [ 47.492547] ? do_vfs_ioctl+0xef/0x1060 [ 47.496513] ? selinux_file_mprotect+0x5d0/0x5d0 [ 47.501261] ? lock_downgrade+0x740/0x740 [ 47.505397] ? ioctl_preallocate+0x1c0/0x1c0 [ 47.509800] SyS_futex+0x215/0x310 [ 47.513369] ? do_futex+0x19e0/0x19e0 [ 47.517155] ? fput+0xd4/0x150 [ 47.520333] ? SyS_ioctl+0x67/0xc0 [ 47.523870] ? do_futex+0x19e0/0x19e0 [ 47.527655] do_syscall_64+0x1e8/0x640 [ 47.531528] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.536478] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.541659] RIP: 0033:0x4469a9 [ 47.544851] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 47.552671] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 47.559923] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 47.567183] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 47.574469] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 47.581731] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 47.589017] CPU: 1 PID: 7329 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 47.596896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.606239] Call Trace: [ 47.608842] dump_stack+0x142/0x197 [ 47.612468] should_fail.cold+0x10f/0x159 [ 47.616600] get_futex_key+0xb88/0x1400 [ 47.620571] ? futex_lock_pi_atomic+0x220/0x220 [ 47.625268] ? up_read+0x1a/0x40 [ 47.628622] futex_wake+0xd9/0x430 [ 47.632157] ? get_futex_key+0x1400/0x1400 [ 47.636384] ? lock_downgrade+0x740/0x740 [ 47.640517] do_futex+0x290/0x19e0 [ 47.644044] ? tty_ldisc_deref+0x35/0x40 [ 47.648088] ? tty_ioctl+0x485/0x1320 [ 47.651878] ? get_pid_task+0xbf/0x140 [ 47.655749] ? tty_vhangup+0x30/0x30 [ 47.659466] ? trace_hardirqs_on+0x10/0x10 [ 47.663688] ? futex_exit_release+0x70/0x70 [ 47.667996] ? __might_sleep+0x93/0xb0 [ 47.671981] ? tty_vhangup+0x30/0x30 [ 47.675681] ? do_vfs_ioctl+0xef/0x1060 [ 47.679648] ? selinux_file_mprotect+0x5d0/0x5d0 [ 47.684386] ? lock_downgrade+0x740/0x740 [ 47.688520] ? ioctl_preallocate+0x1c0/0x1c0 [ 47.692921] SyS_futex+0x215/0x310 [ 47.696462] ? do_futex+0x19e0/0x19e0 [ 47.700268] ? fput+0xd4/0x150 [ 47.703475] ? SyS_ioctl+0x67/0xc0 [ 47.707004] ? do_futex+0x19e0/0x19e0 [ 47.710790] do_syscall_64+0x1e8/0x640 [ 47.714660] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.719498] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.724674] RIP: 0033:0x4469a9 executing program [ 47.727864] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 47.735561] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 47.742828] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 47.750095] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 47.753248] FAULT_INJECTION: forcing a failure. [ 47.753248] name fail_futex, interval 1, probability 0, space 0, times 0 [ 47.757359] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 47.757363] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 47.758806] CPU: 1 PID: 7330 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 47.791305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.800646] Call Trace: [ 47.803228] dump_stack+0x142/0x197 [ 47.806853] should_fail.cold+0x10f/0x159 [ 47.810990] get_futex_key+0xb88/0x1400 [ 47.814949] ? futex_lock_pi_atomic+0x220/0x220 [ 47.819720] ? up_read+0x1a/0x40 [ 47.823084] futex_wake+0xd9/0x430 [ 47.826609] ? get_futex_key+0x1400/0x1400 [ 47.830828] ? lock_downgrade+0x740/0x740 [ 47.834970] do_futex+0x290/0x19e0 [ 47.838492] ? tty_ldisc_deref+0x35/0x40 [ 47.842646] ? tty_ioctl+0x485/0x1320 [ 47.846441] ? get_pid_task+0xbf/0x140 [ 47.850323] ? tty_vhangup+0x30/0x30 [ 47.854024] ? trace_hardirqs_on+0x10/0x10 [ 47.858257] ? futex_exit_release+0x70/0x70 [ 47.862579] ? __might_sleep+0x93/0xb0 [ 47.866470] ? tty_vhangup+0x30/0x30 [ 47.870183] ? do_vfs_ioctl+0xef/0x1060 [ 47.874156] ? selinux_file_mprotect+0x5d0/0x5d0 [ 47.878902] ? lock_downgrade+0x740/0x740 [ 47.883062] ? ioctl_preallocate+0x1c0/0x1c0 [ 47.886364] FAULT_INJECTION: forcing a failure. [ 47.886364] name fail_futex, interval 1, probability 0, space 0, times 0 [ 47.887475] SyS_futex+0x215/0x310 [ 47.887489] ? do_futex+0x19e0/0x19e0 [ 47.906140] ? fput+0xd4/0x150 [ 47.909324] ? SyS_ioctl+0x67/0xc0 [ 47.912867] ? do_futex+0x19e0/0x19e0 [ 47.916663] do_syscall_64+0x1e8/0x640 [ 47.920536] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.925380] entry_SYSCALL_64_after_hwframe+0x42/0xb7 executing program executing program [ 47.930557] RIP: 0033:0x4469a9 [ 47.933728] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 47.941426] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 47.948678] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 47.955937] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 47.963190] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 47.970451] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 executing program [ 47.977720] CPU: 0 PID: 7325 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 47.985604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.994955] Call Trace: [ 47.997546] dump_stack+0x142/0x197 [ 47.998134] FAULT_INJECTION: forcing a failure. [ 47.998134] name fail_futex, interval 1, probability 0, space 0, times 0 [ 48.001178] should_fail.cold+0x10f/0x159 [ 48.001190] get_futex_key+0xb88/0x1400 [ 48.001204] ? futex_lock_pi_atomic+0x220/0x220 [ 48.001212] ? up_read+0x1a/0x40 executing program [ 48.001219] futex_wake+0xd9/0x430 [ 48.001233] ? get_futex_key+0x1400/0x1400 [ 48.036490] ? lock_downgrade+0x740/0x740 [ 48.040649] do_futex+0x290/0x19e0 [ 48.044189] ? tty_ldisc_deref+0x35/0x40 [ 48.048341] ? tty_ioctl+0x485/0x1320 [ 48.052143] ? get_pid_task+0xbf/0x140 [ 48.054871] FAULT_INJECTION: forcing a failure. [ 48.054871] name fail_futex, interval 1, probability 0, space 0, times 0 [ 48.056046] ? tty_vhangup+0x30/0x30 [ 48.056056] ? trace_hardirqs_on+0x10/0x10 [ 48.056070] ? futex_exit_release+0x70/0x70 [ 48.079865] ? __might_sleep+0x93/0xb0 [ 48.083749] ? tty_vhangup+0x30/0x30 [ 48.087457] ? do_vfs_ioctl+0xef/0x1060 [ 48.091428] ? selinux_file_mprotect+0x5d0/0x5d0 [ 48.093245] FAULT_INJECTION: forcing a failure. [ 48.093245] name fail_futex, interval 1, probability 0, space 0, times 0 [ 48.096181] ? lock_downgrade+0x740/0x740 [ 48.096191] ? ioctl_preallocate+0x1c0/0x1c0 [ 48.096202] SyS_futex+0x215/0x310 [ 48.096217] ? do_futex+0x19e0/0x19e0 [ 48.123388] ? fput+0xd4/0x150 [ 48.126564] ? SyS_ioctl+0x67/0xc0 [ 48.130095] ? do_futex+0x19e0/0x19e0 [ 48.133887] do_syscall_64+0x1e8/0x640 [ 48.137767] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.142604] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.147906] RIP: 0033:0x4469a9 [ 48.151080] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 48.158874] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 48.166145] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 48.173406] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 48.180660] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 48.187926] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 48.195196] CPU: 1 PID: 7340 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 48.203075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.212424] Call Trace: [ 48.215004] dump_stack+0x142/0x197 [ 48.218617] should_fail.cold+0x10f/0x159 [ 48.223460] get_futex_key+0xb88/0x1400 [ 48.227432] ? futex_lock_pi_atomic+0x220/0x220 [ 48.232097] ? up_read+0x1a/0x40 [ 48.235451] futex_wake+0xd9/0x430 [ 48.238987] ? get_futex_key+0x1400/0x1400 [ 48.243215] ? lock_downgrade+0x740/0x740 [ 48.247348] do_futex+0x290/0x19e0 [ 48.250886] ? tty_ldisc_deref+0x35/0x40 [ 48.254945] ? tty_ioctl+0x485/0x1320 [ 48.258736] ? get_pid_task+0xbf/0x140 [ 48.262616] ? tty_vhangup+0x30/0x30 [ 48.266418] ? trace_hardirqs_on+0x10/0x10 [ 48.270653] ? futex_exit_release+0x70/0x70 [ 48.274964] ? __might_sleep+0x93/0xb0 [ 48.278853] ? tty_vhangup+0x30/0x30 [ 48.282560] ? do_vfs_ioctl+0xef/0x1060 [ 48.286523] ? selinux_file_mprotect+0x5d0/0x5d0 [ 48.291279] ? lock_downgrade+0x740/0x740 [ 48.295430] ? ioctl_preallocate+0x1c0/0x1c0 [ 48.299826] SyS_futex+0x215/0x310 [ 48.303472] ? do_futex+0x19e0/0x19e0 [ 48.307270] ? fput+0xd4/0x150 [ 48.310460] ? SyS_ioctl+0x67/0xc0 [ 48.313992] ? do_futex+0x19e0/0x19e0 [ 48.317789] do_syscall_64+0x1e8/0x640 [ 48.321669] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.326512] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.331693] RIP: 0033:0x4469a9 [ 48.334873] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 48.342570] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 48.349837] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 48.357101] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 48.364364] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 48.371631] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 48.379051] CPU: 0 PID: 7336 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 48.387056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.396547] Call Trace: [ 48.399128] dump_stack+0x142/0x197 [ 48.402745] should_fail.cold+0x10f/0x159 [ 48.406894] get_futex_key+0xb88/0x1400 [ 48.410863] ? futex_lock_pi_atomic+0x220/0x220 [ 48.415533] ? up_read+0x1a/0x40 [ 48.419017] futex_wake+0xd9/0x430 [ 48.422560] ? get_futex_key+0x1400/0x1400 [ 48.426789] ? lock_downgrade+0x740/0x740 [ 48.430928] do_futex+0x290/0x19e0 [ 48.434467] ? tty_ldisc_deref+0x35/0x40 [ 48.438521] ? tty_ioctl+0x485/0x1320 [ 48.442322] ? get_pid_task+0xbf/0x140 [ 48.446206] ? tty_vhangup+0x30/0x30 [ 48.449918] ? trace_hardirqs_on+0x10/0x10 [ 48.454152] ? futex_exit_release+0x70/0x70 [ 48.458469] ? __might_sleep+0x93/0xb0 [ 48.462375] ? tty_vhangup+0x30/0x30 [ 48.466082] ? do_vfs_ioctl+0xef/0x1060 [ 48.470047] ? selinux_file_mprotect+0x5d0/0x5d0 [ 48.474793] ? lock_downgrade+0x740/0x740 [ 48.478939] ? ioctl_preallocate+0x1c0/0x1c0 [ 48.483389] SyS_futex+0x215/0x310 [ 48.486926] ? do_futex+0x19e0/0x19e0 [ 48.490851] ? fput+0xd4/0x150 [ 48.494032] ? SyS_ioctl+0x67/0xc0 [ 48.497561] ? do_futex+0x19e0/0x19e0 [ 48.501365] do_syscall_64+0x1e8/0x640 [ 48.505371] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.510365] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.515660] RIP: 0033:0x4469a9 [ 48.518839] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 48.526548] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 48.533812] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 48.541076] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 48.548339] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 48.555602] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 48.563000] CPU: 1 PID: 7341 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 48.570889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.580390] Call Trace: [ 48.582971] dump_stack+0x142/0x197 [ 48.586590] should_fail.cold+0x10f/0x159 [ 48.590772] get_futex_key+0xb88/0x1400 [ 48.594754] ? futex_lock_pi_atomic+0x220/0x220 [ 48.599507] ? up_read+0x1a/0x40 [ 48.602871] futex_wake+0xd9/0x430 [ 48.606402] ? get_futex_key+0x1400/0x1400 [ 48.610630] ? lock_downgrade+0x740/0x740 [ 48.614776] do_futex+0x290/0x19e0 [ 48.618312] ? tty_ldisc_deref+0x35/0x40 [ 48.622363] ? tty_ioctl+0x485/0x1320 [ 48.626303] ? get_pid_task+0xbf/0x140 [ 48.630210] ? tty_vhangup+0x30/0x30 [ 48.633913] ? trace_hardirqs_on+0x10/0x10 [ 48.638154] ? futex_exit_release+0x70/0x70 [ 48.642580] ? __might_sleep+0x93/0xb0 [ 48.646596] ? tty_vhangup+0x30/0x30 [ 48.650308] ? do_vfs_ioctl+0xef/0x1060 [ 48.654272] ? selinux_file_mprotect+0x5d0/0x5d0 [ 48.659145] ? lock_downgrade+0x740/0x740 [ 48.663296] ? ioctl_preallocate+0x1c0/0x1c0 [ 48.667698] SyS_futex+0x215/0x310 [ 48.671230] ? do_futex+0x19e0/0x19e0 [ 48.675040] ? fput+0xd4/0x150 [ 48.678370] ? SyS_ioctl+0x67/0xc0 executing program [ 48.681910] ? do_futex+0x19e0/0x19e0 [ 48.685704] do_syscall_64+0x1e8/0x640 [ 48.689588] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.694427] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.699612] RIP: 0033:0x4469a9 [ 48.703046] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 48.710836] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 48.714196] FAULT_INJECTION: forcing a failure. [ 48.714196] name fail_futex, interval 1, probability 0, space 0, times 0 [ 48.718129] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 48.718133] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 48.718136] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 48.718140] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 48.720619] CPU: 1 PID: 7343 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 48.767120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.776628] Call Trace: [ 48.779222] dump_stack+0x142/0x197 executing program [ 48.782872] should_fail.cold+0x10f/0x159 [ 48.787131] get_futex_key+0xb88/0x1400 [ 48.791099] ? futex_lock_pi_atomic+0x220/0x220 [ 48.795841] ? up_read+0x1a/0x40 [ 48.799210] futex_wake+0xd9/0x430 [ 48.802775] ? get_futex_key+0x1400/0x1400 [ 48.807019] ? lock_downgrade+0x740/0x740 [ 48.811222] do_futex+0x290/0x19e0 [ 48.814763] ? tty_ldisc_deref+0x35/0x40 [ 48.818825] ? tty_ioctl+0x485/0x1320 [ 48.822781] ? get_pid_task+0xbf/0x140 [ 48.826675] ? tty_vhangup+0x30/0x30 [ 48.828539] FAULT_INJECTION: forcing a failure. [ 48.828539] name fail_futex, interval 1, probability 0, space 0, times 0 [ 48.830580] ? trace_hardirqs_on+0x10/0x10 [ 48.830591] ? futex_exit_release+0x70/0x70 [ 48.830598] ? __might_sleep+0x93/0xb0 [ 48.830611] ? tty_vhangup+0x30/0x30 [ 48.858915] ? do_vfs_ioctl+0xef/0x1060 [ 48.863051] ? selinux_file_mprotect+0x5d0/0x5d0 [ 48.867927] ? lock_downgrade+0x740/0x740 [ 48.872078] ? ioctl_preallocate+0x1c0/0x1c0 [ 48.876605] SyS_futex+0x215/0x310 [ 48.880161] ? do_futex+0x19e0/0x19e0 [ 48.883958] ? fput+0xd4/0x150 [ 48.887145] ? SyS_ioctl+0x67/0xc0 [ 48.891074] ? do_futex+0x19e0/0x19e0 [ 48.894874] do_syscall_64+0x1e8/0x640 [ 48.898984] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.903837] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.909236] RIP: 0033:0x4469a9 [ 48.912420] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 48.920409] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 48.927672] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c executing program executing program [ 48.935114] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 48.942702] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 48.950149] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 48.957455] CPU: 0 PID: 7334 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 48.965552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.975417] Call Trace: [ 48.978016] dump_stack+0x142/0x197 [ 48.980007] FAULT_INJECTION: forcing a failure. [ 48.980007] name fail_futex, interval 1, probability 0, space 0, times 0 [ 48.981662] should_fail.cold+0x10f/0x159 [ 48.981673] get_futex_key+0xb88/0x1400 [ 48.981686] ? futex_lock_pi_atomic+0x220/0x220 [ 49.006765] ? up_read+0x1a/0x40 [ 49.010263] futex_wake+0xd9/0x430 [ 49.013800] ? get_futex_key+0x1400/0x1400 [ 49.018196] ? lock_downgrade+0x740/0x740 [ 49.022890] do_futex+0x290/0x19e0 [ 49.026427] ? tty_ldisc_deref+0x35/0x40 [ 49.030741] ? tty_ioctl+0x485/0x1320 [ 49.034550] ? get_pid_task+0xbf/0x140 [ 49.035598] FAULT_INJECTION: forcing a failure. [ 49.035598] name fail_futex, interval 1, probability 0, space 0, times 0 [ 49.038504] ? tty_vhangup+0x30/0x30 [ 49.038513] ? trace_hardirqs_on+0x10/0x10 [ 49.038526] ? futex_exit_release+0x70/0x70 [ 49.062805] ? __might_sleep+0x93/0xb0 [ 49.066691] ? tty_vhangup+0x30/0x30 [ 49.070886] ? do_vfs_ioctl+0xef/0x1060 [ 49.075027] ? selinux_file_mprotect+0x5d0/0x5d0 [ 49.080224] ? lock_downgrade+0x740/0x740 executing program [ 49.084602] ? ioctl_preallocate+0x1c0/0x1c0 [ 49.089133] SyS_futex+0x215/0x310 [ 49.092778] ? do_futex+0x19e0/0x19e0 [ 49.096946] ? fput+0xd4/0x150 [ 49.100160] ? SyS_ioctl+0x67/0xc0 [ 49.103696] ? do_futex+0x19e0/0x19e0 [ 49.107514] do_syscall_64+0x1e8/0x640 [ 49.111487] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.120678] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.126137] RIP: 0033:0x4469a9 [ 49.129337] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 49.137048] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 49.142792] FAULT_INJECTION: forcing a failure. [ 49.142792] name fail_futex, interval 1, probability 0, space 0, times 0 [ 49.144663] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 49.144666] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 49.144670] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 49.144674] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 49.145444] CPU: 0 PID: 7347 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 49.194130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.203742] Call Trace: [ 49.206505] dump_stack+0x142/0x197 [ 49.210546] should_fail.cold+0x10f/0x159 [ 49.214698] get_futex_key+0xb88/0x1400 [ 49.218679] ? futex_lock_pi_atomic+0x220/0x220 [ 49.223348] ? up_read+0x1a/0x40 [ 49.226709] futex_wake+0xd9/0x430 [ 49.230432] ? get_futex_key+0x1400/0x1400 [ 49.234664] ? lock_downgrade+0x740/0x740 [ 49.238807] do_futex+0x290/0x19e0 [ 49.242558] ? tty_ldisc_deref+0x35/0x40 [ 49.246615] ? tty_ioctl+0x485/0x1320 [ 49.250411] ? get_pid_task+0xbf/0x140 [ 49.254390] ? tty_vhangup+0x30/0x30 [ 49.258120] ? trace_hardirqs_on+0x10/0x10 [ 49.262360] ? futex_exit_release+0x70/0x70 [ 49.266673] ? __might_sleep+0x93/0xb0 [ 49.270730] ? tty_vhangup+0x30/0x30 [ 49.274439] ? do_vfs_ioctl+0xef/0x1060 [ 49.278414] ? selinux_file_mprotect+0x5d0/0x5d0 [ 49.283167] ? lock_downgrade+0x740/0x740 [ 49.287318] ? ioctl_preallocate+0x1c0/0x1c0 [ 49.291853] SyS_futex+0x215/0x310 [ 49.295391] ? do_futex+0x19e0/0x19e0 [ 49.299329] ? fput+0xd4/0x150 [ 49.302517] ? SyS_ioctl+0x67/0xc0 [ 49.306184] ? do_futex+0x19e0/0x19e0 [ 49.310158] do_syscall_64+0x1e8/0x640 [ 49.314220] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.319351] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.324537] RIP: 0033:0x4469a9 [ 49.327846] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 49.335552] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 49.342932] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 49.350196] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 49.357822] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 49.365207] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 49.372484] CPU: 1 PID: 7351 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 49.380643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.390291] Call Trace: [ 49.392890] dump_stack+0x142/0x197 [ 49.396677] should_fail.cold+0x10f/0x159 [ 49.400999] get_futex_key+0xb88/0x1400 [ 49.405223] ? futex_lock_pi_atomic+0x220/0x220 [ 49.409886] ? up_read+0x1a/0x40 [ 49.413408] futex_wake+0xd9/0x430 [ 49.416945] ? get_futex_key+0x1400/0x1400 [ 49.421313] ? lock_downgrade+0x740/0x740 [ 49.425585] do_futex+0x290/0x19e0 [ 49.429168] ? tty_ldisc_deref+0x35/0x40 [ 49.433367] ? tty_ioctl+0x485/0x1320 [ 49.437259] ? get_pid_task+0xbf/0x140 [ 49.441152] ? tty_vhangup+0x30/0x30 [ 49.444862] ? trace_hardirqs_on+0x10/0x10 [ 49.449315] ? futex_exit_release+0x70/0x70 [ 49.453641] ? __might_sleep+0x93/0xb0 [ 49.457808] ? tty_vhangup+0x30/0x30 [ 49.461641] ? do_vfs_ioctl+0xef/0x1060 [ 49.465753] ? selinux_file_mprotect+0x5d0/0x5d0 [ 49.470530] ? lock_downgrade+0x740/0x740 [ 49.474686] ? ioctl_preallocate+0x1c0/0x1c0 [ 49.479094] SyS_futex+0x215/0x310 [ 49.482898] ? do_futex+0x19e0/0x19e0 [ 49.486690] ? fput+0xd4/0x150 [ 49.490031] ? SyS_ioctl+0x67/0xc0 [ 49.493570] ? do_futex+0x19e0/0x19e0 [ 49.497371] do_syscall_64+0x1e8/0x640 [ 49.501332] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.506244] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.511567] RIP: 0033:0x4469a9 [ 49.514758] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 49.522699] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 49.529969] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 49.537438] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 49.544896] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 49.552176] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 49.559461] CPU: 0 PID: 7345 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 49.567512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.577072] Call Trace: [ 49.579667] dump_stack+0x142/0x197 [ 49.583306] should_fail.cold+0x10f/0x159 [ 49.587485] get_futex_key+0xb88/0x1400 [ 49.591463] ? futex_lock_pi_atomic+0x220/0x220 [ 49.596130] ? up_read+0x1a/0x40 [ 49.599692] futex_wake+0xd9/0x430 [ 49.603261] ? get_futex_key+0x1400/0x1400 [ 49.607737] ? lock_downgrade+0x740/0x740 [ 49.611896] do_futex+0x290/0x19e0 [ 49.615632] ? tty_ldisc_deref+0x35/0x40 [ 49.619766] ? tty_ioctl+0x485/0x1320 [ 49.623572] ? get_pid_task+0xbf/0x140 [ 49.627458] ? tty_vhangup+0x30/0x30 [ 49.631274] ? trace_hardirqs_on+0x10/0x10 [ 49.635625] ? futex_exit_release+0x70/0x70 [ 49.639941] ? __might_sleep+0x93/0xb0 [ 49.643835] ? tty_vhangup+0x30/0x30 [ 49.647687] ? do_vfs_ioctl+0xef/0x1060 [ 49.651781] ? selinux_file_mprotect+0x5d0/0x5d0 [ 49.656534] ? lock_downgrade+0x740/0x740 [ 49.660781] ? ioctl_preallocate+0x1c0/0x1c0 [ 49.665399] SyS_futex+0x215/0x310 [ 49.668940] ? do_futex+0x19e0/0x19e0 [ 49.672741] ? fput+0xd4/0x150 [ 49.675929] ? SyS_ioctl+0x67/0xc0 [ 49.679469] ? do_futex+0x19e0/0x19e0 [ 49.683266] do_syscall_64+0x1e8/0x640 [ 49.687160] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.692012] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.697286] RIP: 0033:0x4469a9 [ 49.700471] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 49.708349] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 49.715811] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 49.723259] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 49.730643] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 49.738101] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 49.745380] CPU: 1 PID: 7354 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 49.753679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.756197] FAULT_INJECTION: forcing a failure. [ 49.756197] name fail_futex, interval 1, probability 0, space 0, times 0 [ 49.763118] Call Trace: [ 49.763136] dump_stack+0x142/0x197 [ 49.763148] should_fail.cold+0x10f/0x159 [ 49.763158] get_futex_key+0xb88/0x1400 [ 49.763171] ? futex_lock_pi_atomic+0x220/0x220 [ 49.774779] FAULT_INJECTION: forcing a failure. [ 49.774779] name fail_futex, interval 1, probability 0, space 0, times 0 [ 49.777252] ? up_read+0x1a/0x40 [ 49.777263] futex_wake+0xd9/0x430 [ 49.777273] ? get_futex_key+0x1400/0x1400 [ 49.782997] FAULT_INJECTION: forcing a failure. [ 49.782997] name fail_futex, interval 1, probability 0, space 0, times 0 [ 49.785049] ? lock_downgrade+0x740/0x740 [ 49.785060] do_futex+0x290/0x19e0 [ 49.785069] ? tty_ldisc_deref+0x35/0x40 [ 49.839715] ? tty_ioctl+0x485/0x1320 [ 49.843515] ? get_pid_task+0xbf/0x140 [ 49.847392] ? tty_vhangup+0x30/0x30 [ 49.851132] ? trace_hardirqs_on+0x10/0x10 [ 49.855467] ? futex_exit_release+0x70/0x70 [ 49.859906] ? __might_sleep+0x93/0xb0 [ 49.863799] ? tty_vhangup+0x30/0x30 [ 49.867518] ? do_vfs_ioctl+0xef/0x1060 [ 49.871631] ? selinux_file_mprotect+0x5d0/0x5d0 [ 49.876380] ? lock_downgrade+0x740/0x740 [ 49.880520] ? ioctl_preallocate+0x1c0/0x1c0 [ 49.884931] SyS_futex+0x215/0x310 [ 49.888468] ? do_futex+0x19e0/0x19e0 [ 49.892266] ? fput+0xd4/0x150 [ 49.895451] ? SyS_ioctl+0x67/0xc0 [ 49.899022] ? do_futex+0x19e0/0x19e0 [ 49.902824] do_syscall_64+0x1e8/0x640 [ 49.906704] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.913568] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.918880] RIP: 0033:0x4469a9 [ 49.922112] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 49.929821] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 executing program executing program executing program [ 49.937179] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 49.944657] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 49.952096] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 49.959530] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 49.966813] CPU: 0 PID: 7358 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 49.974718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.984289] Call Trace: [ 49.986874] dump_stack+0x142/0x197 [ 49.990678] should_fail.cold+0x10f/0x159 [ 49.995132] get_futex_key+0xb88/0x1400 [ 49.999108] ? futex_lock_pi_atomic+0x220/0x220 [ 50.003783] ? up_read+0x1a/0x40 [ 50.007152] futex_wake+0xd9/0x430 [ 50.010691] ? get_futex_key+0x1400/0x1400 [ 50.014930] ? lock_downgrade+0x740/0x740 [ 50.019273] do_futex+0x290/0x19e0 [ 50.022907] ? tty_ldisc_deref+0x35/0x40 [ 50.026969] ? tty_ioctl+0x485/0x1320 [ 50.030933] ? trace_hardirqs_on+0x10/0x10 [ 50.035182] ? tty_vhangup+0x30/0x30 executing program [ 50.038900] ? trace_hardirqs_on+0x10/0x10 [ 50.043227] ? futex_exit_release+0x70/0x70 [ 50.047544] ? __might_sleep+0x93/0xb0 [ 50.051434] ? tty_vhangup+0x30/0x30 [ 50.055297] ? do_vfs_ioctl+0xef/0x1060 [ 50.059272] ? selinux_file_mprotect+0x5d0/0x5d0 [ 50.064024] ? lock_downgrade+0x740/0x740 [ 50.068169] ? ioctl_preallocate+0x1c0/0x1c0 [ 50.072585] SyS_futex+0x215/0x310 [ 50.076244] ? do_futex+0x19e0/0x19e0 [ 50.080043] ? fput+0xd4/0x150 [ 50.083240] ? SyS_ioctl+0x67/0xc0 [ 50.086780] ? do_futex+0x19e0/0x19e0 [ 50.090584] do_syscall_64+0x1e8/0x640 [ 50.094475] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.099342] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.104777] RIP: 0033:0x4469a9 [ 50.107970] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 50.115483] FAULT_INJECTION: forcing a failure. [ 50.115483] name fail_futex, interval 1, probability 0, space 0, times 0 [ 50.115675] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 50.134988] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 50.142384] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 50.149676] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 50.156956] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 50.164590] CPU: 1 PID: 7362 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 50.172571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.182137] Call Trace: [ 50.184885] dump_stack+0x142/0x197 [ 50.188512] should_fail.cold+0x10f/0x159 [ 50.192666] get_futex_key+0xb88/0x1400 [ 50.196814] ? futex_lock_pi_atomic+0x220/0x220 [ 50.201485] ? up_read+0x1a/0x40 [ 50.204852] futex_wake+0xd9/0x430 [ 50.209334] ? get_futex_key+0x1400/0x1400 [ 50.213730] ? lock_downgrade+0x740/0x740 [ 50.218049] do_futex+0x290/0x19e0 [ 50.221588] ? tty_ldisc_deref+0x35/0x40 [ 50.225890] ? tty_ioctl+0x485/0x1320 [ 50.229686] ? get_pid_task+0xbf/0x140 [ 50.233657] ? tty_vhangup+0x30/0x30 [ 50.237475] ? trace_hardirqs_on+0x10/0x10 [ 50.241784] ? futex_exit_release+0x70/0x70 [ 50.246102] ? __might_sleep+0x93/0xb0 [ 50.249998] ? tty_vhangup+0x30/0x30 [ 50.253848] ? do_vfs_ioctl+0xef/0x1060 [ 50.258337] ? selinux_file_mprotect+0x5d0/0x5d0 [ 50.263085] ? lock_downgrade+0x740/0x740 [ 50.267231] ? ioctl_preallocate+0x1c0/0x1c0 [ 50.271648] SyS_futex+0x215/0x310 [ 50.275188] ? do_futex+0x19e0/0x19e0 [ 50.278993] ? fput+0xd4/0x150 [ 50.282214] ? SyS_ioctl+0x67/0xc0 [ 50.285763] ? do_futex+0x19e0/0x19e0 [ 50.289566] do_syscall_64+0x1e8/0x640 [ 50.293564] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.298569] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.303753] RIP: 0033:0x4469a9 [ 50.306935] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 50.314644] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 50.321916] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 50.329316] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 50.337109] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 50.344868] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 50.352420] CPU: 0 PID: 7360 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 50.360613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.370130] Call Trace: [ 50.372734] dump_stack+0x142/0x197 [ 50.376551] should_fail.cold+0x10f/0x159 [ 50.380878] get_futex_key+0xb88/0x1400 [ 50.385162] ? futex_lock_pi_atomic+0x220/0x220 [ 50.389821] ? up_read+0x1a/0x40 [ 50.393186] futex_wake+0xd9/0x430 [ 50.396869] ? get_futex_key+0x1400/0x1400 [ 50.401210] ? lock_downgrade+0x740/0x740 [ 50.405377] do_futex+0x290/0x19e0 [ 50.408924] ? tty_ldisc_deref+0x35/0x40 [ 50.413072] ? tty_ioctl+0x485/0x1320 [ 50.416881] ? get_pid_task+0xbf/0x140 [ 50.420772] ? tty_vhangup+0x30/0x30 [ 50.424571] ? trace_hardirqs_on+0x10/0x10 [ 50.429027] ? futex_exit_release+0x70/0x70 [ 50.434997] ? __might_sleep+0x93/0xb0 [ 50.438882] ? tty_vhangup+0x30/0x30 [ 50.442711] ? do_vfs_ioctl+0xef/0x1060 [ 50.446818] ? selinux_file_mprotect+0x5d0/0x5d0 [ 50.451575] ? lock_downgrade+0x740/0x740 [ 50.455728] ? ioctl_preallocate+0x1c0/0x1c0 [ 50.460224] SyS_futex+0x215/0x310 [ 50.463768] ? do_futex+0x19e0/0x19e0 [ 50.467574] ? fput+0xd4/0x150 [ 50.470762] ? SyS_ioctl+0x67/0xc0 [ 50.474331] ? do_futex+0x19e0/0x19e0 [ 50.478292] do_syscall_64+0x1e8/0x640 [ 50.482178] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.487019] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.492298] RIP: 0033:0x4469a9 [ 50.495487] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 50.503282] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 50.510545] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 50.517941] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 50.525240] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 50.532508] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 50.539955] CPU: 1 PID: 7359 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 50.543538] FAULT_INJECTION: forcing a failure. [ 50.543538] name fail_futex, interval 1, probability 0, space 0, times 0 [ 50.547873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.547876] Call Trace: [ 50.547891] dump_stack+0x142/0x197 [ 50.547905] should_fail.cold+0x10f/0x159 [ 50.571099] FAULT_INJECTION: forcing a failure. [ 50.571099] name fail_futex, interval 1, probability 0, space 0, times 0 [ 50.571751] get_futex_key+0xb88/0x1400 [ 50.595053] ? futex_lock_pi_atomic+0x220/0x220 [ 50.599982] ? up_read+0x1a/0x40 [ 50.603351] futex_wake+0xd9/0x430 [ 50.606896] ? get_futex_key+0x1400/0x1400 [ 50.611135] ? lock_downgrade+0x740/0x740 [ 50.615292] do_futex+0x290/0x19e0 [ 50.619005] ? tty_ldisc_deref+0x35/0x40 [ 50.623126] ? tty_ioctl+0x485/0x1320 [ 50.626918] ? get_pid_task+0xbf/0x140 [ 50.630912] ? tty_vhangup+0x30/0x30 [ 50.634884] ? trace_hardirqs_on+0x10/0x10 [ 50.639118] ? futex_exit_release+0x70/0x70 [ 50.643445] ? __might_sleep+0x93/0xb0 [ 50.647334] ? tty_vhangup+0x30/0x30 [ 50.651062] ? do_vfs_ioctl+0xef/0x1060 [ 50.655049] ? selinux_file_mprotect+0x5d0/0x5d0 [ 50.659816] ? lock_downgrade+0x740/0x740 [ 50.663965] ? ioctl_preallocate+0x1c0/0x1c0 [ 50.668509] SyS_futex+0x215/0x310 [ 50.672276] ? do_futex+0x19e0/0x19e0 [ 50.676081] ? fput+0xd4/0x150 [ 50.679270] ? SyS_ioctl+0x67/0xc0 [ 50.682817] ? do_futex+0x19e0/0x19e0 [ 50.686621] do_syscall_64+0x1e8/0x640 [ 50.690695] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.695548] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.700741] RIP: 0033:0x4469a9 [ 50.703925] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 50.711727] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 50.719086] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 50.726353] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 50.733895] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c executing program executing program [ 50.741317] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 50.748784] CPU: 0 PID: 7366 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 50.756678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.766425] Call Trace: [ 50.769155] dump_stack+0x142/0x197 [ 50.772785] should_fail.cold+0x10f/0x159 [ 50.776933] get_futex_key+0xb88/0x1400 [ 50.781242] ? futex_lock_pi_atomic+0x220/0x220 [ 50.787160] ? up_read+0x1a/0x40 [ 50.790643] futex_wake+0xd9/0x430 [ 50.794381] ? get_futex_key+0x1400/0x1400 [ 50.798883] ? lock_downgrade+0x740/0x740 [ 50.803219] do_futex+0x290/0x19e0 [ 50.806914] ? tty_ldisc_deref+0x35/0x40 [ 50.811108] ? tty_ioctl+0x485/0x1320 [ 50.815079] ? get_pid_task+0xbf/0x140 [ 50.819110] ? tty_vhangup+0x30/0x30 [ 50.822830] ? trace_hardirqs_on+0x10/0x10 [ 50.827077] ? futex_exit_release+0x70/0x70 [ 50.831398] ? __might_sleep+0x93/0xb0 [ 50.835294] ? tty_vhangup+0x30/0x30 [ 50.839053] ? do_vfs_ioctl+0xef/0x1060 executing program [ 50.843269] ? selinux_file_mprotect+0x5d0/0x5d0 [ 50.848197] ? lock_downgrade+0x740/0x740 [ 50.852344] ? ioctl_preallocate+0x1c0/0x1c0 [ 50.856905] SyS_futex+0x215/0x310 [ 50.860450] ? do_futex+0x19e0/0x19e0 [ 50.864572] ? fput+0xd4/0x150 [ 50.867766] ? SyS_ioctl+0x67/0xc0 [ 50.871312] ? do_futex+0x19e0/0x19e0 [ 50.875190] do_syscall_64+0x1e8/0x640 [ 50.879191] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.884156] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.889351] RIP: 0033:0x4469a9 [ 50.892727] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 50.895319] FAULT_INJECTION: forcing a failure. [ 50.895319] name fail_futex, interval 1, probability 0, space 0, times 0 [ 50.900597] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 50.900601] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 50.900605] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 50.900608] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 50.900611] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 50.901100] CPU: 0 PID: 7364 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 50.956741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.966140] Call Trace: [ 50.968728] dump_stack+0x142/0x197 [ 50.972355] should_fail.cold+0x10f/0x159 [ 50.976496] get_futex_key+0xb88/0x1400 [ 50.980538] ? futex_lock_pi_atomic+0x220/0x220 [ 50.985199] ? up_read+0x1a/0x40 [ 50.988558] futex_wake+0xd9/0x430 [ 50.992095] ? get_futex_key+0x1400/0x1400 [ 50.996350] ? lock_downgrade+0x740/0x740 [ 51.000490] do_futex+0x290/0x19e0 [ 51.004107] ? tty_ldisc_deref+0x35/0x40 [ 51.008159] ? tty_ioctl+0x485/0x1320 [ 51.012040] ? get_pid_task+0xbf/0x140 [ 51.015930] ? tty_vhangup+0x30/0x30 [ 51.019639] ? trace_hardirqs_on+0x10/0x10 [ 51.023868] ? futex_exit_release+0x70/0x70 [ 51.028183] ? __might_sleep+0x93/0xb0 [ 51.032073] ? tty_vhangup+0x30/0x30 [ 51.035847] ? do_vfs_ioctl+0xef/0x1060 [ 51.039830] ? selinux_file_mprotect+0x5d0/0x5d0 [ 51.044587] ? lock_downgrade+0x740/0x740 [ 51.048928] ? ioctl_preallocate+0x1c0/0x1c0 [ 51.053336] SyS_futex+0x215/0x310 [ 51.057074] ? do_futex+0x19e0/0x19e0 [ 51.060876] ? fput+0xd4/0x150 [ 51.064067] ? SyS_ioctl+0x67/0xc0 [ 51.067602] ? do_futex+0x19e0/0x19e0 [ 51.071404] do_syscall_64+0x1e8/0x640 [ 51.075286] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.080129] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 51.085309] RIP: 0033:0x4469a9 [ 51.088488] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 51.096210] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 51.103476] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 51.110740] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 51.118005] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 51.125268] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 51.132668] CPU: 1 PID: 7352 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 51.140564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.141104] FAULT_INJECTION: forcing a failure. [ 51.141104] name fail_futex, interval 1, probability 0, space 0, times 0 [ 51.150023] Call Trace: [ 51.150037] dump_stack+0x142/0x197 [ 51.150048] should_fail.cold+0x10f/0x159 [ 51.150058] get_futex_key+0xb88/0x1400 [ 51.150069] ? futex_lock_pi_atomic+0x220/0x220 [ 51.161868] FAULT_INJECTION: forcing a failure. [ 51.161868] name fail_futex, interval 1, probability 0, space 0, times 0 [ 51.164067] ? up_read+0x1a/0x40 [ 51.164077] futex_wake+0xd9/0x430 [ 51.164086] ? get_futex_key+0x1400/0x1400 [ 51.202929] ? lock_downgrade+0x740/0x740 [ 51.207116] do_futex+0x290/0x19e0 [ 51.210663] ? tty_ldisc_deref+0x35/0x40 [ 51.214726] ? tty_ioctl+0x485/0x1320 [ 51.218663] ? get_pid_task+0xbf/0x140 [ 51.222841] ? tty_vhangup+0x30/0x30 [ 51.226689] ? trace_hardirqs_on+0x10/0x10 [ 51.230976] ? futex_exit_release+0x70/0x70 [ 51.235473] ? __might_sleep+0x93/0xb0 [ 51.239359] ? tty_vhangup+0x30/0x30 [ 51.243070] ? do_vfs_ioctl+0xef/0x1060 [ 51.247184] ? selinux_file_mprotect+0x5d0/0x5d0 [ 51.252059] ? lock_downgrade+0x740/0x740 [ 51.256358] ? ioctl_preallocate+0x1c0/0x1c0 [ 51.261001] SyS_futex+0x215/0x310 [ 51.264544] ? do_futex+0x19e0/0x19e0 [ 51.268501] ? fput+0xd4/0x150 [ 51.271695] ? SyS_ioctl+0x67/0xc0 [ 51.275399] ? do_futex+0x19e0/0x19e0 [ 51.279415] do_syscall_64+0x1e8/0x640 [ 51.283325] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.288330] entry_SYSCALL_64_after_hwframe+0x42/0xb7 executing program executing program [ 51.293664] RIP: 0033:0x4469a9 [ 51.297054] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 51.304936] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 51.312639] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 51.320034] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 51.327548] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 51.334919] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 executing program [ 51.342384] CPU: 0 PID: 7372 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 51.350276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.360475] Call Trace: [ 51.363255] dump_stack+0x142/0x197 [ 51.367210] should_fail.cold+0x10f/0x159 [ 51.371480] get_futex_key+0xb88/0x1400 [ 51.375553] ? futex_lock_pi_atomic+0x220/0x220 [ 51.380225] ? up_read+0x1a/0x40 [ 51.383598] futex_wake+0xd9/0x430 [ 51.387312] ? get_futex_key+0x1400/0x1400 [ 51.391546] ? lock_downgrade+0x740/0x740 [ 51.395689] do_futex+0x290/0x19e0 [ 51.400361] ? tty_ldisc_deref+0x35/0x40 [ 51.404427] ? tty_ioctl+0x485/0x1320 [ 51.408828] ? get_pid_task+0xbf/0x140 [ 51.412764] ? tty_vhangup+0x30/0x30 [ 51.416490] ? trace_hardirqs_on+0x10/0x10 [ 51.419691] FAULT_INJECTION: forcing a failure. [ 51.419691] name fail_futex, interval 1, probability 0, space 0, times 0 [ 51.420744] ? futex_exit_release+0x70/0x70 [ 51.420752] ? __might_sleep+0x93/0xb0 [ 51.420763] ? tty_vhangup+0x30/0x30 executing program [ 51.420771] ? do_vfs_ioctl+0xef/0x1060 [ 51.420779] ? selinux_file_mprotect+0x5d0/0x5d0 [ 51.420786] ? lock_downgrade+0x740/0x740 [ 51.420797] ? ioctl_preallocate+0x1c0/0x1c0 [ 51.462049] SyS_futex+0x215/0x310 [ 51.465584] ? do_futex+0x19e0/0x19e0 [ 51.469533] ? fput+0xd4/0x150 [ 51.472915] ? SyS_ioctl+0x67/0xc0 [ 51.476463] ? do_futex+0x19e0/0x19e0 [ 51.480405] do_syscall_64+0x1e8/0x640 [ 51.484285] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.489130] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 51.494318] RIP: 0033:0x4469a9 [ 51.497501] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 51.505351] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 51.512797] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 51.520101] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 51.527839] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 51.535250] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 51.543142] CPU: 0 PID: 7373 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 51.551135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.556592] FAULT_INJECTION: forcing a failure. [ 51.556592] name fail_futex, interval 1, probability 0, space 0, times 0 [ 51.560488] Call Trace: [ 51.560506] dump_stack+0x142/0x197 [ 51.560517] should_fail.cold+0x10f/0x159 [ 51.560526] get_futex_key+0xb88/0x1400 [ 51.560536] ? futex_lock_pi_atomic+0x220/0x220 [ 51.560543] ? up_read+0x1a/0x40 [ 51.560557] futex_wake+0xd9/0x430 [ 51.597875] ? get_futex_key+0x1400/0x1400 [ 51.602234] ? lock_downgrade+0x740/0x740 [ 51.606374] do_futex+0x290/0x19e0 [ 51.609910] ? tty_ldisc_deref+0x35/0x40 [ 51.613967] ? tty_ioctl+0x485/0x1320 [ 51.617763] ? get_pid_task+0xbf/0x140 [ 51.621654] ? tty_vhangup+0x30/0x30 [ 51.625358] ? trace_hardirqs_on+0x10/0x10 [ 51.629584] ? futex_exit_release+0x70/0x70 [ 51.634025] ? __might_sleep+0x93/0xb0 [ 51.637907] ? tty_vhangup+0x30/0x30 [ 51.641618] ? do_vfs_ioctl+0xef/0x1060 [ 51.645584] ? selinux_file_mprotect+0x5d0/0x5d0 [ 51.650334] ? lock_downgrade+0x740/0x740 [ 51.654475] ? ioctl_preallocate+0x1c0/0x1c0 [ 51.658874] SyS_futex+0x215/0x310 [ 51.662418] ? do_futex+0x19e0/0x19e0 [ 51.666214] ? fput+0xd4/0x150 [ 51.669399] ? SyS_ioctl+0x67/0xc0 [ 51.672936] ? do_futex+0x19e0/0x19e0 [ 51.676785] do_syscall_64+0x1e8/0x640 [ 51.680667] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.686515] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 51.691697] RIP: 0033:0x4469a9 [ 51.694879] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 51.702577] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 51.709840] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 51.717104] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 51.724525] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 51.731789] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 51.739281] CPU: 1 PID: 7376 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 51.746619] FAULT_INJECTION: forcing a failure. [ 51.746619] name fail_futex, interval 1, probability 0, space 0, times 0 [ 51.747256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.747260] Call Trace: [ 51.747277] dump_stack+0x142/0x197 [ 51.760364] FAULT_INJECTION: forcing a failure. [ 51.760364] name fail_futex, interval 1, probability 0, space 0, times 0 [ 51.768324] should_fail.cold+0x10f/0x159 [ 51.768337] get_futex_key+0xb88/0x1400 [ 51.794400] ? futex_lock_pi_atomic+0x220/0x220 [ 51.799064] ? up_read+0x1a/0x40 [ 51.802430] futex_wake+0xd9/0x430 [ 51.805968] ? get_futex_key+0x1400/0x1400 [ 51.810197] ? lock_downgrade+0x740/0x740 [ 51.814367] do_futex+0x290/0x19e0 [ 51.817905] ? tty_ldisc_deref+0x35/0x40 [ 51.821959] ? tty_ioctl+0x485/0x1320 [ 51.825805] ? get_pid_task+0xbf/0x140 [ 51.829682] ? tty_vhangup+0x30/0x30 [ 51.833390] ? trace_hardirqs_on+0x10/0x10 [ 51.837619] ? futex_exit_release+0x70/0x70 [ 51.841930] ? __might_sleep+0x93/0xb0 [ 51.845810] ? tty_vhangup+0x30/0x30 [ 51.849600] ? do_vfs_ioctl+0xef/0x1060 [ 51.853652] ? selinux_file_mprotect+0x5d0/0x5d0 [ 51.858407] ? lock_downgrade+0x740/0x740 [ 51.862674] ? ioctl_preallocate+0x1c0/0x1c0 [ 51.867079] SyS_futex+0x215/0x310 [ 51.870672] ? do_futex+0x19e0/0x19e0 [ 51.874465] ? fput+0xd4/0x150 [ 51.877851] ? SyS_ioctl+0x67/0xc0 [ 51.881392] ? do_futex+0x19e0/0x19e0 [ 51.885286] do_syscall_64+0x1e8/0x640 [ 51.889167] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.894010] entry_SYSCALL_64_after_hwframe+0x42/0xb7 executing program executing program [ 51.899190] RIP: 0033:0x4469a9 [ 51.902369] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 51.910071] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 51.917335] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 51.924594] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 51.931861] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 51.939237] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 51.946632] CPU: 0 PID: 7382 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 51.954902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.964329] Call Trace: [ 51.966917] dump_stack+0x142/0x197 [ 51.970544] should_fail.cold+0x10f/0x159 [ 51.974689] get_futex_key+0xb88/0x1400 [ 51.978656] ? futex_lock_pi_atomic+0x220/0x220 [ 51.983317] ? up_read+0x1a/0x40 [ 51.986677] futex_wake+0xd9/0x430 [ 51.990271] ? get_futex_key+0x1400/0x1400 [ 51.994503] ? lock_downgrade+0x740/0x740 [ 51.998646] do_futex+0x290/0x19e0 [ 52.002177] ? tty_ldisc_deref+0x35/0x40 [ 52.006227] ? tty_ioctl+0x485/0x1320 [ 52.010021] ? get_pid_task+0xbf/0x140 [ 52.013905] ? tty_vhangup+0x30/0x30 [ 52.017819] ? trace_hardirqs_on+0x10/0x10 [ 52.022163] ? futex_exit_release+0x70/0x70 [ 52.026478] ? __might_sleep+0x93/0xb0 [ 52.030357] ? tty_vhangup+0x30/0x30 [ 52.034153] ? do_vfs_ioctl+0xef/0x1060 [ 52.038124] ? selinux_file_mprotect+0x5d0/0x5d0 [ 52.042879] ? lock_downgrade+0x740/0x740 executing program [ 52.047024] ? ioctl_preallocate+0x1c0/0x1c0 [ 52.051427] SyS_futex+0x215/0x310 [ 52.054993] ? do_futex+0x19e0/0x19e0 [ 52.058785] ? fput+0xd4/0x150 [ 52.062018] ? SyS_ioctl+0x67/0xc0 [ 52.065548] ? do_futex+0x19e0/0x19e0 [ 52.069349] do_syscall_64+0x1e8/0x640 [ 52.073233] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.078170] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 52.083448] RIP: 0033:0x4469a9 [ 52.086761] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 52.094575] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 52.101838] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 52.109101] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 52.116407] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 52.124201] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 52.132362] CPU: 0 PID: 7380 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 52.140412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.150068] Call Trace: [ 52.152670] dump_stack+0x142/0x197 [ 52.156624] should_fail.cold+0x10f/0x159 [ 52.157446] FAULT_INJECTION: forcing a failure. [ 52.157446] name fail_futex, interval 1, probability 0, space 0, times 0 [ 52.160779] get_futex_key+0xb88/0x1400 [ 52.160788] ? futex_lock_pi_atomic+0x220/0x220 [ 52.160795] ? up_read+0x1a/0x40 [ 52.160803] futex_wake+0xd9/0x430 [ 52.160811] ? get_futex_key+0x1400/0x1400 [ 52.160817] ? lock_downgrade+0x740/0x740 [ 52.160828] do_futex+0x290/0x19e0 [ 52.199754] ? tty_ldisc_deref+0x35/0x40 [ 52.203815] ? tty_ioctl+0x485/0x1320 [ 52.207608] ? get_pid_task+0xbf/0x140 [ 52.211605] ? tty_vhangup+0x30/0x30 [ 52.215375] ? trace_hardirqs_on+0x10/0x10 [ 52.219649] ? futex_exit_release+0x70/0x70 [ 52.224112] ? __might_sleep+0x93/0xb0 [ 52.228127] ? tty_vhangup+0x30/0x30 [ 52.231840] ? do_vfs_ioctl+0xef/0x1060 [ 52.235811] ? selinux_file_mprotect+0x5d0/0x5d0 [ 52.240730] ? lock_downgrade+0x740/0x740 [ 52.244881] ? ioctl_preallocate+0x1c0/0x1c0 [ 52.249424] SyS_futex+0x215/0x310 [ 52.252969] ? do_futex+0x19e0/0x19e0 [ 52.256781] ? fput+0xd4/0x150 [ 52.259985] ? SyS_ioctl+0x67/0xc0 [ 52.263528] ? do_futex+0x19e0/0x19e0 [ 52.267321] do_syscall_64+0x1e8/0x640 [ 52.271204] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.276046] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 52.281465] RIP: 0033:0x4469a9 [ 52.284653] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 52.292513] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 52.299777] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 52.307168] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 52.314704] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 52.322117] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 52.329577] CPU: 1 PID: 7385 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 52.337687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.347129] Call Trace: [ 52.349721] dump_stack+0x142/0x197 [ 52.353434] should_fail.cold+0x10f/0x159 [ 52.357708] get_futex_key+0xb88/0x1400 [ 52.362121] ? futex_lock_pi_atomic+0x220/0x220 [ 52.366786] ? up_read+0x1a/0x40 [ 52.370236] futex_wake+0xd9/0x430 [ 52.373893] ? get_futex_key+0x1400/0x1400 [ 52.378122] ? lock_downgrade+0x740/0x740 [ 52.382469] do_futex+0x290/0x19e0 [ 52.386157] ? tty_ldisc_deref+0x35/0x40 [ 52.390390] ? tty_ioctl+0x485/0x1320 [ 52.394191] ? get_pid_task+0xbf/0x140 [ 52.398126] ? tty_vhangup+0x30/0x30 [ 52.402102] ? trace_hardirqs_on+0x10/0x10 [ 52.406334] ? futex_exit_release+0x70/0x70 [ 52.410656] ? __might_sleep+0x93/0xb0 [ 52.414543] ? tty_vhangup+0x30/0x30 [ 52.418454] ? do_vfs_ioctl+0xef/0x1060 [ 52.422427] ? selinux_file_mprotect+0x5d0/0x5d0 [ 52.427397] ? lock_downgrade+0x740/0x740 [ 52.431541] ? ioctl_preallocate+0x1c0/0x1c0 [ 52.436040] SyS_futex+0x215/0x310 [ 52.439779] ? do_futex+0x19e0/0x19e0 [ 52.443576] ? fput+0xd4/0x150 [ 52.446772] ? SyS_ioctl+0x67/0xc0 [ 52.450438] ? do_futex+0x19e0/0x19e0 [ 52.454236] do_syscall_64+0x1e8/0x640 [ 52.458114] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.463124] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 52.468307] RIP: 0033:0x4469a9 [ 52.471493] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 52.479367] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 52.486722] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 52.494006] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 52.501401] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 52.508927] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 52.516270] CPU: 0 PID: 7378 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 52.524391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.533924] Call Trace: [ 52.536603] dump_stack+0x142/0x197 [ 52.540231] should_fail.cold+0x10f/0x159 [ 52.544466] get_futex_key+0xb88/0x1400 [ 52.548437] ? futex_lock_pi_atomic+0x220/0x220 [ 52.553105] ? up_read+0x1a/0x40 [ 52.556651] futex_wake+0xd9/0x430 [ 52.560194] ? get_futex_key+0x1400/0x1400 [ 52.564550] ? lock_downgrade+0x740/0x740 [ 52.568703] do_futex+0x290/0x19e0 [ 52.572375] ? tty_ldisc_deref+0x35/0x40 [ 52.576593] ? tty_ioctl+0x485/0x1320 [ 52.580391] ? get_pid_task+0xbf/0x140 [ 52.584529] ? tty_vhangup+0x30/0x30 [ 52.588243] ? trace_hardirqs_on+0x10/0x10 [ 52.592563] ? futex_exit_release+0x70/0x70 [ 52.597009] ? __might_sleep+0x93/0xb0 [ 52.600906] ? tty_vhangup+0x30/0x30 [ 52.604624] ? do_vfs_ioctl+0xef/0x1060 [ 52.608615] ? selinux_file_mprotect+0x5d0/0x5d0 [ 52.613373] ? lock_downgrade+0x740/0x740 [ 52.617524] ? ioctl_preallocate+0x1c0/0x1c0 [ 52.622070] SyS_futex+0x215/0x310 [ 52.625613] ? do_futex+0x19e0/0x19e0 [ 52.629408] ? fput+0xd4/0x150 [ 52.632595] ? SyS_ioctl+0x67/0xc0 [ 52.636130] ? do_futex+0x19e0/0x19e0 [ 52.640124] do_syscall_64+0x1e8/0x640 [ 52.644017] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.649002] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 52.654185] RIP: 0033:0x4469a9 [ 52.657369] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 52.665597] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 52.673161] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 52.680424] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 52.688057] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 52.695328] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 52.702757] CPU: 1 PID: 7368 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 52.707768] FAULT_INJECTION: forcing a failure. [ 52.707768] name fail_futex, interval 1, probability 0, space 0, times 0 [ 52.711048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.711051] Call Trace: [ 52.711067] dump_stack+0x142/0x197 [ 52.711078] should_fail.cold+0x10f/0x159 [ 52.711088] get_futex_key+0xb88/0x1400 [ 52.711097] ? futex_lock_pi_atomic+0x220/0x220 [ 52.711104] ? up_read+0x1a/0x40 [ 52.711115] futex_wake+0xd9/0x430 [ 52.725345] FAULT_INJECTION: forcing a failure. [ 52.725345] name fail_futex, interval 1, probability 0, space 0, times 0 [ 52.732234] ? get_futex_key+0x1400/0x1400 [ 52.732243] ? lock_downgrade+0x740/0x740 [ 52.732252] do_futex+0x290/0x19e0 [ 52.732258] ? tty_ldisc_deref+0x35/0x40 [ 52.732265] ? tty_ioctl+0x485/0x1320 [ 52.732273] ? get_pid_task+0xbf/0x140 [ 52.732280] ? tty_vhangup+0x30/0x30 [ 52.732285] ? trace_hardirqs_on+0x10/0x10 [ 52.732295] ? futex_exit_release+0x70/0x70 [ 52.808053] ? __might_sleep+0x93/0xb0 [ 52.812109] ? tty_vhangup+0x30/0x30 [ 52.816213] ? do_vfs_ioctl+0xef/0x1060 [ 52.820408] ? selinux_file_mprotect+0x5d0/0x5d0 [ 52.825176] ? lock_downgrade+0x740/0x740 [ 52.829627] ? ioctl_preallocate+0x1c0/0x1c0 [ 52.834219] SyS_futex+0x215/0x310 [ 52.837757] ? do_futex+0x19e0/0x19e0 [ 52.841924] ? fput+0xd4/0x150 [ 52.845108] ? SyS_ioctl+0x67/0xc0 [ 52.850558] ? do_futex+0x19e0/0x19e0 [ 52.854355] do_syscall_64+0x1e8/0x640 [ 52.858237] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.863220] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 52.868405] RIP: 0033:0x4469a9 [ 52.871792] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 52.879567] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 52.886994] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 52.894469] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 executing program executing program executing program executing program executing program [ 52.901898] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 52.909396] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 52.916871] CPU: 0 PID: 7390 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 52.924971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.934476] Call Trace: [ 52.937311] dump_stack+0x142/0x197 [ 52.940846] FAULT_INJECTION: forcing a failure. [ 52.940846] name fail_futex, interval 1, probability 0, space 0, times 0 [ 52.941107] should_fail.cold+0x10f/0x159 [ 52.957020] get_futex_key+0xb88/0x1400 [ 52.961397] ? futex_lock_pi_atomic+0x220/0x220 [ 52.966157] ? up_read+0x1a/0x40 [ 52.968325] FAULT_INJECTION: forcing a failure. [ 52.968325] name fail_futex, interval 1, probability 0, space 0, times 0 [ 52.969528] futex_wake+0xd9/0x430 [ 52.969538] ? get_futex_key+0x1400/0x1400 [ 52.969549] ? lock_downgrade+0x740/0x740 [ 52.993810] do_futex+0x290/0x19e0 [ 52.997551] ? tty_ldisc_deref+0x35/0x40 [ 53.001624] ? tty_ioctl+0x485/0x1320 [ 53.003910] FAULT_INJECTION: forcing a failure. [ 53.003910] name fail_futex, interval 1, probability 0, space 0, times 0 [ 53.005516] ? get_pid_task+0xbf/0x140 [ 53.005525] ? tty_vhangup+0x30/0x30 [ 53.005538] ? trace_hardirqs_on+0x10/0x10 [ 53.029784] ? futex_exit_release+0x70/0x70 [ 53.034247] ? __might_sleep+0x93/0xb0 [ 53.038147] ? tty_vhangup+0x30/0x30 [ 53.041867] ? do_vfs_ioctl+0xef/0x1060 [ 53.045837] ? selinux_file_mprotect+0x5d0/0x5d0 [ 53.050815] ? lock_downgrade+0x740/0x740 [ 53.055531] ? ioctl_preallocate+0x1c0/0x1c0 [ 53.060275] SyS_futex+0x215/0x310 [ 53.064006] ? do_futex+0x19e0/0x19e0 [ 53.067993] ? fput+0xd4/0x150 [ 53.071185] ? SyS_ioctl+0x67/0xc0 [ 53.074853] ? do_futex+0x19e0/0x19e0 [ 53.078828] do_syscall_64+0x1e8/0x640 [ 53.082830] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.087968] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.093390] RIP: 0033:0x4469a9 [ 53.096574] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 53.104625] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 53.111980] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 53.119504] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 53.126927] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 53.134501] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 53.141784] CPU: 1 PID: 7393 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 53.149950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.159563] Call Trace: [ 53.162273] dump_stack+0x142/0x197 [ 53.165921] should_fail.cold+0x10f/0x159 [ 53.170349] get_futex_key+0xb88/0x1400 [ 53.174453] ? futex_lock_pi_atomic+0x220/0x220 [ 53.179221] ? up_read+0x1a/0x40 [ 53.182720] futex_wake+0xd9/0x430 [ 53.186259] ? get_futex_key+0x1400/0x1400 [ 53.190920] ? lock_downgrade+0x740/0x740 [ 53.195318] do_futex+0x290/0x19e0 [ 53.198861] ? tty_ldisc_deref+0x35/0x40 [ 53.203010] ? tty_ioctl+0x485/0x1320 [ 53.206977] ? get_pid_task+0xbf/0x140 [ 53.211126] ? tty_vhangup+0x30/0x30 [ 53.214848] ? trace_hardirqs_on+0x10/0x10 [ 53.219290] ? futex_exit_release+0x70/0x70 [ 53.223855] ? __might_sleep+0x93/0xb0 [ 53.227747] ? tty_vhangup+0x30/0x30 [ 53.231549] ? do_vfs_ioctl+0xef/0x1060 [ 53.235583] ? selinux_file_mprotect+0x5d0/0x5d0 [ 53.240796] ? lock_downgrade+0x740/0x740 [ 53.245101] ? ioctl_preallocate+0x1c0/0x1c0 [ 53.249509] SyS_futex+0x215/0x310 [ 53.253228] ? do_futex+0x19e0/0x19e0 [ 53.257031] ? fput+0xd4/0x150 [ 53.260219] ? SyS_ioctl+0x67/0xc0 [ 53.263756] ? do_futex+0x19e0/0x19e0 [ 53.267708] do_syscall_64+0x1e8/0x640 [ 53.271698] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.276968] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.282286] RIP: 0033:0x4469a9 [ 53.285643] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 53.293481] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 53.300879] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 53.308353] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 53.315779] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 53.323377] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 53.332042] CPU: 0 PID: 7388 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 53.340143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.350036] Call Trace: [ 53.352631] dump_stack+0x142/0x197 [ 53.356422] should_fail.cold+0x10f/0x159 [ 53.360933] get_futex_key+0xb88/0x1400 [ 53.365043] ? futex_lock_pi_atomic+0x220/0x220 [ 53.369801] ? up_read+0x1a/0x40 [ 53.373374] futex_wake+0xd9/0x430 [ 53.377235] ? get_futex_key+0x1400/0x1400 [ 53.381595] ? lock_downgrade+0x740/0x740 [ 53.386064] do_futex+0x290/0x19e0 [ 53.389769] ? tty_ldisc_deref+0x35/0x40 [ 53.393920] ? tty_ioctl+0x485/0x1320 [ 53.397882] ? get_pid_task+0xbf/0x140 [ 53.401871] ? tty_vhangup+0x30/0x30 [ 53.405694] ? trace_hardirqs_on+0x10/0x10 [ 53.410157] ? futex_exit_release+0x70/0x70 [ 53.414602] ? __might_sleep+0x93/0xb0 [ 53.418690] ? tty_vhangup+0x30/0x30 [ 53.422618] ? do_vfs_ioctl+0xef/0x1060 [ 53.426730] ? selinux_file_mprotect+0x5d0/0x5d0 [ 53.431729] ? lock_downgrade+0x740/0x740 [ 53.436029] ? ioctl_preallocate+0x1c0/0x1c0 [ 53.440528] SyS_futex+0x215/0x310 [ 53.444151] ? do_futex+0x19e0/0x19e0 [ 53.448168] ? fput+0xd4/0x150 [ 53.451594] ? SyS_ioctl+0x67/0xc0 [ 53.455538] ? do_futex+0x19e0/0x19e0 [ 53.459370] do_syscall_64+0x1e8/0x640 [ 53.463507] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.468720] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.474053] RIP: 0033:0x4469a9 [ 53.477513] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 53.485538] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 53.492804] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 53.500380] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 53.507766] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 53.515191] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 53.522557] CPU: 1 PID: 7395 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 53.529657] FAULT_INJECTION: forcing a failure. [ 53.529657] name fail_futex, interval 1, probability 0, space 0, times 0 [ 53.530740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.530743] Call Trace: [ 53.530780] dump_stack+0x142/0x197 [ 53.530795] should_fail.cold+0x10f/0x159 [ 53.544985] FAULT_INJECTION: forcing a failure. [ 53.544985] name fail_futex, interval 1, probability 0, space 0, times 0 [ 53.552263] get_futex_key+0xb88/0x1400 [ 53.552272] ? futex_lock_pi_atomic+0x220/0x220 [ 53.552280] ? up_read+0x1a/0x40 [ 53.552290] futex_wake+0xd9/0x430 [ 53.580385] FAULT_INJECTION: forcing a failure. [ 53.580385] name fail_futex, interval 1, probability 0, space 0, times 0 [ 53.583514] ? get_futex_key+0x1400/0x1400 [ 53.583525] ? lock_downgrade+0x740/0x740 [ 53.610550] do_futex+0x290/0x19e0 [ 53.614091] ? tty_ldisc_deref+0x35/0x40 [ 53.618147] ? tty_ioctl+0x485/0x1320 [ 53.622109] ? get_pid_task+0xbf/0x140 [ 53.625997] ? tty_vhangup+0x30/0x30 [ 53.630052] ? trace_hardirqs_on+0x10/0x10 [ 53.634403] ? futex_exit_release+0x70/0x70 [ 53.638721] ? __might_sleep+0x93/0xb0 [ 53.642885] ? tty_vhangup+0x30/0x30 [ 53.646683] ? do_vfs_ioctl+0xef/0x1060 [ 53.650658] ? selinux_file_mprotect+0x5d0/0x5d0 [ 53.655896] ? lock_downgrade+0x740/0x740 [ 53.660233] ? ioctl_preallocate+0x1c0/0x1c0 [ 53.664851] SyS_futex+0x215/0x310 [ 53.668397] ? do_futex+0x19e0/0x19e0 [ 53.672286] ? fput+0xd4/0x150 [ 53.675598] ? SyS_ioctl+0x67/0xc0 [ 53.679232] ? do_futex+0x19e0/0x19e0 [ 53.683092] do_syscall_64+0x1e8/0x640 [ 53.687258] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.692315] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.697781] RIP: 0033:0x4469a9 executing program executing program executing program [ 53.700964] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 53.708971] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 53.716277] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 53.723716] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 53.730987] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 53.738380] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 53.745816] CPU: 0 PID: 7401 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 53.753828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.763289] Call Trace: [ 53.766031] dump_stack+0x142/0x197 [ 53.769757] should_fail.cold+0x10f/0x159 [ 53.773929] get_futex_key+0xb88/0x1400 [ 53.777903] ? futex_lock_pi_atomic+0x220/0x220 [ 53.782969] ? up_read+0x1a/0x40 [ 53.786384] futex_wake+0xd9/0x430 [ 53.790021] ? get_futex_key+0x1400/0x1400 [ 53.794422] ? lock_downgrade+0x740/0x740 [ 53.798669] do_futex+0x290/0x19e0 [ 53.802406] ? tty_ldisc_deref+0x35/0x40 [ 53.806644] ? tty_ioctl+0x485/0x1320 [ 53.810439] ? get_pid_task+0xbf/0x140 [ 53.814322] ? tty_vhangup+0x30/0x30 [ 53.818188] ? trace_hardirqs_on+0x10/0x10 [ 53.822571] ? futex_exit_release+0x70/0x70 [ 53.826892] ? __might_sleep+0x93/0xb0 [ 53.830995] ? tty_vhangup+0x30/0x30 [ 53.834723] ? do_vfs_ioctl+0xef/0x1060 [ 53.838698] ? selinux_file_mprotect+0x5d0/0x5d0 [ 53.843733] ? lock_downgrade+0x740/0x740 [ 53.847888] ? ioctl_preallocate+0x1c0/0x1c0 [ 53.852357] SyS_futex+0x215/0x310 executing program [ 53.855897] ? do_futex+0x19e0/0x19e0 [ 53.859702] ? fput+0xd4/0x150 [ 53.862908] ? SyS_ioctl+0x67/0xc0 [ 53.866685] ? do_futex+0x19e0/0x19e0 [ 53.870740] do_syscall_64+0x1e8/0x640 [ 53.874721] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.879720] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.885106] RIP: 0033:0x4469a9 [ 53.888451] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 53.894986] FAULT_INJECTION: forcing a failure. [ 53.894986] name fail_futex, interval 1, probability 0, space 0, times 0 [ 53.896158] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 53.896163] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 53.896167] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 53.896170] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 53.896178] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 53.945603] CPU: 1 PID: 7396 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 53.953893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.963487] Call Trace: [ 53.966084] dump_stack+0x142/0x197 [ 53.969937] should_fail.cold+0x10f/0x159 [ 53.974108] get_futex_key+0xb88/0x1400 [ 53.978167] ? futex_lock_pi_atomic+0x220/0x220 [ 53.983207] ? up_read+0x1a/0x40 [ 53.986698] futex_wake+0xd9/0x430 [ 53.990407] ? get_futex_key+0x1400/0x1400 [ 53.994849] ? lock_downgrade+0x740/0x740 [ 53.999091] do_futex+0x290/0x19e0 [ 54.002768] ? tty_ldisc_deref+0x35/0x40 [ 54.006918] ? tty_ioctl+0x485/0x1320 [ 54.010729] ? get_pid_task+0xbf/0x140 [ 54.014620] ? tty_vhangup+0x30/0x30 [ 54.018353] ? trace_hardirqs_on+0x10/0x10 [ 54.022595] ? futex_exit_release+0x70/0x70 [ 54.026914] ? __might_sleep+0x93/0xb0 [ 54.030801] ? tty_vhangup+0x30/0x30 [ 54.034861] ? do_vfs_ioctl+0xef/0x1060 [ 54.038917] ? selinux_file_mprotect+0x5d0/0x5d0 [ 54.043818] ? lock_downgrade+0x740/0x740 [ 54.048059] ? ioctl_preallocate+0x1c0/0x1c0 [ 54.052481] SyS_futex+0x215/0x310 [ 54.056081] ? do_futex+0x19e0/0x19e0 [ 54.060154] ? fput+0xd4/0x150 [ 54.063511] ? SyS_ioctl+0x67/0xc0 [ 54.067142] ? do_futex+0x19e0/0x19e0 [ 54.071127] do_syscall_64+0x1e8/0x640 [ 54.075160] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.080004] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.085414] RIP: 0033:0x4469a9 [ 54.088740] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 54.096618] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 54.104078] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 54.111477] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 54.119096] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c [ 54.126366] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 54.133644] CPU: 0 PID: 7402 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 54.141820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.151677] Call Trace: [ 54.154266] dump_stack+0x142/0x197 [ 54.157906] should_fail.cold+0x10f/0x159 [ 54.162250] get_futex_key+0xb88/0x1400 [ 54.166307] ? futex_lock_pi_atomic+0x220/0x220 [ 54.170978] ? up_read+0x1a/0x40 [ 54.174341] futex_wake+0xd9/0x430 [ 54.177892] ? get_futex_key+0x1400/0x1400 [ 54.182289] ? lock_downgrade+0x740/0x740 [ 54.186437] do_futex+0x290/0x19e0 [ 54.190188] ? tty_ldisc_deref+0x35/0x40 [ 54.194412] ? tty_ioctl+0x485/0x1320 [ 54.198219] ? get_pid_task+0xbf/0x140 [ 54.202232] ? tty_vhangup+0x30/0x30 executing program [ 54.205949] ? trace_hardirqs_on+0x10/0x10 [ 54.210187] ? futex_exit_release+0x70/0x70 [ 54.214517] ? __might_sleep+0x93/0xb0 [ 54.218574] ? tty_vhangup+0x30/0x30 [ 54.222285] ? do_vfs_ioctl+0xef/0x1060 [ 54.226362] ? selinux_file_mprotect+0x5d0/0x5d0 [ 54.231143] ? lock_downgrade+0x740/0x740 [ 54.235375] ? ioctl_preallocate+0x1c0/0x1c0 [ 54.239788] SyS_futex+0x215/0x310 [ 54.243318] ? do_futex+0x19e0/0x19e0 [ 54.247119] ? fput+0xd4/0x150 [ 54.250305] ? SyS_ioctl+0x67/0xc0 [ 54.253847] ? do_futex+0x19e0/0x19e0 [ 54.257643] do_syscall_64+0x1e8/0x640 [ 54.261524] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.266489] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.271810] RIP: 0033:0x4469a9 [ 54.275013] RSP: 002b:00007f9662f65cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 54.282738] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004469a9 [ 54.286150] FAULT_INJECTION: forcing a failure. [ 54.286150] name fail_futex, interval 1, probability 0, space 0, times 0 [ 54.290010] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc4c [ 54.290014] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 54.290018] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc4c [ 54.290021] R13: 00007f9662f65d10 R14: 0000000000000007 R15: 0000000000000000 [ 54.290608] CPU: 0 PID: 7403 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 54.338439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.347790] Call Trace: [ 54.350376] dump_stack+0x142/0x197 [ 54.354037] should_fail.cold+0x10f/0x159 [ 54.358177] get_futex_key+0xb88/0x1400 [ 54.362151] ? futex_lock_pi_atomic+0x220/0x220 [ 54.366814] ? up_read+0x1a/0x40 [ 54.370181] futex_wake+0xd9/0x430 [ 54.373716] ? get_futex_key+0x1400/0x1400 [ 54.377948] ? lock_downgrade+0x740/0x740 [ 54.382118] do_futex+0x290/0x19e0 [ 54.385649] ? tty_ldisc_deref+0x35/0x40 [ 54.389696] ? tty_ioctl+0x485/0x1320 [ 54.393478] ? get_pid_task+0xbf/0x140 [ 54.397421] ? tty_vhangup+0x30/0x30 [ 54.401124] ? trace_hardirqs_on+0x10/0x10 [ 54.405351] ? futex_exit_release+0x70/0x70 [ 54.409656] ? __might_sleep+0x93/0xb0 [ 54.413539] ? tty_vhangup+0x30/0x30 [ 54.417249] ? do_vfs_ioctl+0xef/0x1060 [ 54.421214] ? selinux_file_mprotect+0x5d0/0x5d0 [ 54.425954] ? lock_downgrade+0x740/0x740 [ 54.430098] ? ioctl_preallocate+0x1c0/0x1c0 [ 54.434504] SyS_futex+0x215/0x310 [ 54.438031] ? do_futex+0x19e0/0x19e0 [ 54.441813] ? fput+0xd4/0x150 [ 54.444989] ? SyS_ioctl+0x67/0xc0 [ 54.448519] ? do_futex+0x19e0/0x19e0 [ 54.452307] do_syscall_64+0x1e8/0x640 [ 54.456274] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.461117] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.466297] RIP: 0033:0x4469a9 [ 54.469556] RSP: 002b:00007f9662f44cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 54.477253] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004469a9 [ 54.484513] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc5c [ 54.491794] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 54.499054] R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc5c executing program executing program [ 54.506327] R13: 00007f9662f44d10 R14: 0000000000000007 R15: 0000000000000000 [ 54.513600] CPU: 1 PID: 7407 Comm: syz-executor946 Not tainted 4.14.170-syzkaller #0 [ 54.521573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.522431] FAULT_INJECTION: forcing a failure. [ 54.522431] name fail_futex, interval 1, probability 0, space 0, times 0 [ 54.530925] Call Trace: [ 54.530943] dump_stack+0x142/0x197 [ 54.530955] should_fail.cold+0x10f/0x159 [ 54.530964] get_futex_key+0xb88/0x1400